Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Member Login
Page / 902
Link Posted: 1/31/2016 11:21:02 AM EDT




CD
Link Posted: 1/31/2016 11:22:05 AM EDT
Thank you, sir
Link Posted: 1/31/2016 11:26:07 AM EDT
Discussion ForumsJump to Quoted PostQuote History

Don't miss that Chinese Marineplex at all!
Link Posted: 1/31/2016 11:29:07 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Tmender03:

Don't miss that Chinese Marineplex at all!
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Tmender03:

Don't miss that Chinese Marineplex at all!


Used to see pallets and pallets of that shit on the flight line coming from UAE and going everywhere.
Link Posted: 1/31/2016 11:34:25 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By azoutdoorsman:
Combat_Diver has posted photos in this thread with lowers engraved MK18-1 .
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By azoutdoorsman:
Originally Posted By JohnnySasaki20:

I'm no expert on the matter, but I think technically there is only the Mk18 [Mod 0] and the Block II CQBR (and potentially the Block I as well), but I think Block II CQBR's are widely coined, unofficially, as Mk18 Mod 1's. Again, I think it's technically incorrect, but "Mk18 Mod 1" is apparently used even among people who know the official name.

Take that all with a grain of salt. I heard that somewhere, probably online, and I have no idea if it's actually true or not.
Combat_Diver has posted photos in this thread with lowers engraved MK18-1 .


Yeah, I was kinda drunk when I wrote that, lol. I remember those pics. What's the difference? Just a different lower?
Link Posted: 1/31/2016 11:39:37 AM EDT
[Last Edit: 1/31/2016 11:43:30 AM EDT by DontBuryMe]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By JohnnySasaki20:


Yeah, I was kinda drunk when I wrote that, lol. I remember those pics. What's the difference? Just a different lower?
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By JohnnySasaki20:
Originally Posted By azoutdoorsman:
Originally Posted By JohnnySasaki20:

I'm no expert on the matter, but I think technically there is only the Mk18 [Mod 0] and the Block II CQBR (and potentially the Block I as well), but I think Block II CQBR's are widely coined, unofficially, as Mk18 Mod 1's. Again, I think it's technically incorrect, but "Mk18 Mod 1" is apparently used even among people who know the official name.

Take that all with a grain of salt. I heard that somewhere, probably online, and I have no idea if it's actually true or not.
Combat_Diver has posted photos in this thread with lowers engraved MK18-1 .


Yeah, I was kinda drunk when I wrote that, lol. I remember those pics. What's the difference? Just a different lower?


Technically it's even the same lower (M4A1). Just a different designation/nomenclature. They're probably tracked differently on a Navy property book (Or whatever they call it?) versus an Army one.
Link Posted: 1/31/2016 12:24:54 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DontBuryMe:


Technically it's even the same lower (M4A1). Just a different designation/nomenclature. They're probably tracked differently on a Navy property book (Or whatever they call it?) versus an Army one.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DontBuryMe:
Originally Posted By JohnnySasaki20:
Originally Posted By azoutdoorsman:
Originally Posted By JohnnySasaki20:

I'm no expert on the matter, but I think technically there is only the Mk18 [Mod 0] and the Block II CQBR (and potentially the Block I as well), but I think Block II CQBR's are widely coined, unofficially, as Mk18 Mod 1's. Again, I think it's technically incorrect, but "Mk18 Mod 1" is apparently used even among people who know the official name.

Take that all with a grain of salt. I heard that somewhere, probably online, and I have no idea if it's actually true or not.
Combat_Diver has posted photos in this thread with lowers engraved MK18-1 .


Yeah, I was kinda drunk when I wrote that, lol. I remember those pics. What's the difference? Just a different lower?


Technically it's even the same lower (M4A1). Just a different designation/nomenclature. They're probably tracked differently on a Navy property book (Or whatever they call it?) versus an Army one.


Bingo, just a property book designation for tracking. Notice even the upper is tracked now. Army still uses M4A1 with the upper being tracked as a Upper Receiver Group (URG). Not all have the upper receiver that is serial numbered only the newer built ones. A Block II can either be a 10.3" or 14.5". If it has a FSB then its just a M4A1.

CD
Link Posted: 1/31/2016 2:25:20 PM EDT
[Last Edit: 1/31/2016 2:31:32 PM EDT by Roadblock]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Alaska511:


Gracias. I know about Block II

I missed CD's post on that one. I try to catch up with this nearly every day, but it runs sideways sometimes.




View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Alaska511:
Originally Posted By DontBuryMe:
Originally Posted By Alaska511:
I wish you boys would rule on this subject. Is there a Mod1, or nay? That Edit dude was throwing it around during his troll, and I was thinking "WTF is Mod1"? Now, I see that it may be an actual thing?

Learn me, please.


There is a Mk18-1 in service. CD has posted pictures in here.

There is also a Block II CQBR.


Gracias. I know about Block II

I missed CD's post on that one. I try to catch up with this nearly every day, but it runs sideways sometimes.





Can you guys school me on a Block II CQBR Vs. a Mk18 Mod 1? I guess a thought a Block II CQBR was the same thing as a Mk18 Mod 1 (Mk18-1), you know the Mk18 with the Daniel Defense MK18 RIS II rail etc..?

I definitely remember C_D posting those Property of U.S. Govt M4A1 Carbine, Navy Mk18-1 marked rifles using with the DD MK18 RIS II rail on it, I guess I thought it was all the same thing?

Reading the posts above it sounds like all the same thing?

What would the Marine Raiders call the rifle for example? Obviously not Navy Mk18-1 :P

I've been doing this clone shit since 2008, I literally started out here on ARF right after I got my first DD rail and I still don't know what the hell I've got. It shoots bullets, I know that much.

Link Posted: 1/31/2016 2:34:48 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:

Can you guys school me on a Block II CQBR Vs. a Mk18 Mod 1? I guess a thought a Block II CQBR was the same thing as a Mk18 Mod 1 (Mk18-1), you know the Mk18 with the Daniel Defense MK18 RIS II rail etc..?

I definitely remember C_D posting those Property of U.S. Govt M4A1 Carbine, Navy Mk18-1 marked rifles using with the DD MK18 RIS II rail on it, I guess I thought it was all the same thing?

Reading the posts above it sounds like all the same thing?

What would the Marine Raiders call the rifle for example? Obviously not Navy Mk18-1 :P

I've been doing this clone shit since 2008, I literally started out here on ARF right after I got my first DD rail and I still don't know what the hell I've got. It shoots bullets, I know that much.

View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:
Originally Posted By Alaska511:
Originally Posted By DontBuryMe:
Originally Posted By Alaska511:
I wish you boys would rule on this subject. Is there a Mod1, or nay? That Edit dude was throwing it around during his troll, and I was thinking "WTF is Mod1"? Now, I see that it may be an actual thing?

Learn me, please.


There is a Mk18-1 in service. CD has posted pictures in here.

There is also a Block II CQBR.


Gracias. I know about Block II

I missed CD's post on that one. I try to catch up with this nearly every day, but it runs sideways sometimes.





Can you guys school me on a Block II CQBR Vs. a Mk18 Mod 1? I guess a thought a Block II CQBR was the same thing as a Mk18 Mod 1 (Mk18-1), you know the Mk18 with the Daniel Defense MK18 RIS II rail etc..?

I definitely remember C_D posting those Property of U.S. Govt M4A1 Carbine, Navy Mk18-1 marked rifles using with the DD MK18 RIS II rail on it, I guess I thought it was all the same thing?

Reading the posts above it sounds like all the same thing?

What would the Marine Raiders call the rifle for example? Obviously not Navy Mk18-1 :P

I've been doing this clone shit since 2008, I literally started out here on ARF right after I got my first DD rail and I still don't know what the hell I've got. It shoots bullets, I know that much.

PM Member Edit...he seems to be the go to guy
Link Posted: 1/31/2016 2:48:25 PM EDT
Marines and Army call it a M4A1 URG (CQBR) but receivers still marked M4A1. Navy calls the exact same gun the Mk18 Mod 1 full designation but shorted on the markings as Navy 18-1. Now on the Mk47 Mod 0 40mm Advanced Lightweight Grenade Launcher. Army calls it the Mk47 and Navy refers to it as the ALGL.


CD
Link Posted: 1/31/2016 3:02:30 PM EDT
[Last Edit: 1/31/2016 3:15:02 PM EDT by Roadblock]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Combat_Diver:
Marines and Army call it a M4A1 URG (CQBR) but receivers still marked M4A1. Navy calls the exact same gun the Mk18 Mod 1 full designation but shorted on the markings as Navy 18-1. Now on the Mk47 Mod 0 40mm Advanced Lightweight Grenade Launcher. Army calls it the Mk47 and Navy refers to it as the ALGL.


CD
View Quote

SO... If your going for a Navy load out, it's appropriate to call it an Mk18-1, but if your doing an Army/Marine load out it would be the M4A1 CQBR? Correct?


Did I nail it? Seems legit...




Link Posted: 1/31/2016 3:29:26 PM EDT
[Last Edit: 1/31/2016 3:29:51 PM EDT by DontBuryMe]
[Edit]

wrong font on your labels.

[/Edit]
Link Posted: 1/31/2016 3:36:12 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DontBuryMe:
[Edit]

wrong font on your labels.

[/Edit]
View Quote

Link Posted: 1/31/2016 3:49:55 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:

View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:
Originally Posted By DontBuryMe:
[Edit]

wrong font on your labels.

[/Edit]


Asshole!

I read that at the same time I took a drink of coffee, snorted and some came out my nose! Thank god it was iced coffee and not hot!
Link Posted: 1/31/2016 4:20:04 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DontBuryMe:
[Edit]

wrong font on your labels.

[/Edit]
View Quote

Oh........and he also forgot the S/N for the lower. Unless he's using the "RISIICQBRMK18-1" for that
Link Posted: 1/31/2016 4:31:06 PM EDT
[Last Edit: 1/31/2016 4:31:29 PM EDT by Tmender03]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:

SO... If your going for a Navy load out, it's appropriate to call it an Mk18-1, but if your doing an Army/Marine load out it would be the M4A1 CQBR? Correct?


Did I nail it? Seems legit...

https://farm2.staticflickr.com/1663/24439562060_4a90229da7_c.jpg

View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:
Originally Posted By Combat_Diver:
Marines and Army call it a M4A1 URG (CQBR) but receivers still marked M4A1. Navy calls the exact same gun the Mk18 Mod 1 full designation but shorted on the markings as Navy 18-1. Now on the Mk47 Mod 0 40mm Advanced Lightweight Grenade Launcher. Army calls it the Mk47 and Navy refers to it as the ALGL.


CD

SO... If your going for a Navy load out, it's appropriate to call it an Mk18-1, but if your doing an Army/Marine load out it would be the M4A1 CQBR? Correct?


Did I nail it? Seems legit...

https://farm2.staticflickr.com/1663/24439562060_4a90229da7_c.jpg



Put the P-Touch away.
Link Posted: 1/31/2016 4:39:16 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:

Oh........and he also forgot the S/N for the lower. Unless he's using the "RISIICQBRMK18-1" for that
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:
Originally Posted By DontBuryMe:
[Edit]

wrong font on your labels.

[/Edit]

Oh........and he also forgot the S/N for the lower. Unless he's using the "RISIICQBRMK18-1" for that

Ran out of room! :)
Link Posted: 1/31/2016 4:45:24 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:

Ran out of room! :)
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:
Originally Posted By SecretSquirell:
Originally Posted By DontBuryMe:
[Edit]

wrong font on your labels.

[/Edit]

Oh........and he also forgot the S/N for the lower. Unless he's using the "RISIICQBRMK18-1" for that

Ran out of room! :)

The ATF will be contacting you soon.
Link Posted: 1/31/2016 4:52:23 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:

SO... If your going for a Navy load out, it's appropriate to call it an Mk18-1, but if your doing an Army/Marine load out it would be the M4A1 CQBR? Correct?


Did I nail it? Seems legit...

https://farm2.staticflickr.com/1663/24439562060_4a90229da7_c.jpg


View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:
Originally Posted By Combat_Diver:
Marines and Army call it a M4A1 URG (CQBR) but receivers still marked M4A1. Navy calls the exact same gun the Mk18 Mod 1 full designation but shorted on the markings as Navy 18-1. Now on the Mk47 Mod 0 40mm Advanced Lightweight Grenade Launcher. Army calls it the Mk47 and Navy refers to it as the ALGL.


CD

SO... If your going for a Navy load out, it's appropriate to call it an Mk18-1, but if your doing an Army/Marine load out it would be the M4A1 CQBR? Correct?


Did I nail it? Seems legit...

https://farm2.staticflickr.com/1663/24439562060_4a90229da7_c.jpg



Too legit. All you left out was the warning of zero shift/parallax on the EO hood.
Link Posted: 1/31/2016 6:01:42 PM EDT
Speaking of legit... Anyone got a spare CQD rear sling end plate they wanna sell me? Going to post in the EE for one now! ;)
Link Posted: 1/31/2016 6:10:52 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:
Speaking of legit... Anyone got a spare CQD rear sling end plate they wanna sell me? Going to post in the EE for one now! ;)
View Quote


Dsg has them in stock
Link Posted: 1/31/2016 6:11:03 PM EDT
Discussion ForumsJump to Quoted PostQuote History


I know it's not mk18 related, but what suppressor is on the scar there?
Link Posted: 1/31/2016 7:06:34 PM EDT
[Last Edit: 1/31/2016 7:07:34 PM EDT by Roadblock]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By pbjunkiee:


Dsg has them in stock
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By pbjunkiee:
Originally Posted By Roadblock:
Speaking of legit... Anyone got a spare CQD rear sling end plate they wanna sell me? Going to post in the EE for one now! ;)


Dsg has them in stock

So does CQD but used is always cheaper! Got a used CQD front for $20.00 shipped off one of you guys here.

Link Posted: 1/31/2016 7:23:59 PM EDT
this is my favorite page of this entire thread.
Link Posted: 1/31/2016 7:53:16 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By stagepaint:


I know it's not mk18 related, but what suppressor is on the scar there?
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By stagepaint:


I know it's not mk18 related, but what suppressor is on the scar there?


It's the FN QD suppressor (either a 701 or 702).
Link Posted: 1/31/2016 8:38:48 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By KILLERB6:


And the myth perpetuates itself.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By KILLERB6:
Originally Posted By FedDC:
Originally Posted By Combat_Diver:
Replacing a shot out barrel (swallowed the barrel erosion gage). Got everything ready to go for later after dinner. Bolt carrier is marked SDI, anyone know who made that?

http://www.hunt101.com/data/500/IMG_16316.JPG


CD


And I dare anyone to call my parts incorrect..............



Are the replacement barrels made by Colt? Someone mentioned that DD was also making barrels for the MK 18?



And the myth perpetuates itself.



I ask because it is what I was told by people that work in that world and would know...plus I have seen a few rebarreled versions that didn't appear to have Colt barrels. I'm no expert...just curious.

Link Posted: 1/31/2016 9:35:45 PM EDT
Anyone been looking for a Mk 18 FSP rail? Might know of one available.

Pic thread:
Link Posted: 1/31/2016 9:39:36 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By TinyCrumb:
Anyone been looking for a Mk 18 FSP rail? Might know of one available.

Pic thread:
http://i.imgur.com/ZQJbNHc.jpg
View Quote

That dude have 100 mph tape wrapped around his can?
Link Posted: 1/31/2016 9:44:39 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:

That dude have 100 mph tape wrapped around his can?
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:
Originally Posted By TinyCrumb:
Anyone been looking for a Mk 18 FSP rail? Might know of one available.

Pic thread:
http://i.imgur.com/ZQJbNHc.jpg

That dude have 100 mph tape wrapped around his can?


Might be a training can or a bfa
Link Posted: 1/31/2016 9:57:35 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By pbjunkiee:


Might be a training can or a bfa
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By pbjunkiee:
Originally Posted By SecretSquirell:
Originally Posted By TinyCrumb:
Anyone been looking for a Mk 18 FSP rail? Might know of one available.

Pic thread:
http://i.imgur.com/ZQJbNHc.jpg

That dude have 100 mph tape wrapped around his can?


Might be a training can or a bfa

That's kinda what I was thinking. But why tape/camo up a BFA can?
Link Posted: 1/31/2016 10:01:38 PM EDT
[Last Edit: 1/31/2016 10:04:13 PM EDT by DontBuryMe]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By pbjunkiee:


Might be a training can or a bfa
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By pbjunkiee:
Originally Posted By SecretSquirell:
Originally Posted By TinyCrumb:
Anyone been looking for a Mk 18 FSP rail? Might know of one available.

Pic thread:
http://i.imgur.com/ZQJbNHc.jpg

That dude have 100 mph tape wrapped around his can?


Might be a training can or a bfa


Probably. Judging by the training mags.

Originally Posted By SecretSquirell:
That's kinda what I was thinking. But why tape/camo up a BFA can?


I don't know about you, but my eye always got drawn to the big yellow/red square on the end of my rifle during training lol. Maybe he's trying to avoid that?
Link Posted: 1/31/2016 10:17:01 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DontBuryMe:
Probably. Judging by the training mags.



I don't know about you, but my eye always got drawn to the big yellow/red square on the end of my rifle during training lol. Maybe he's trying to avoid that?
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DontBuryMe:
Probably. Judging by the training mags.

Originally Posted By SecretSquirell:
That's kinda what I was thinking. But why tape/camo up a BFA can?


I don't know about you, but my eye always got drawn to the big yellow/red square on the end of my rifle during training lol. Maybe he's trying to avoid that?

Eh maybe a bit. During my time in, I don't think I was ever given away by my BFA nor did I see it before someone was already on the attack.

Then again, my MOS was way different than homeslice up there.
Link Posted: 1/31/2016 10:21:48 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:

Eh maybe a bit. During my time in, I don't think I was ever given away by my BFA nor did I see it before someone was already on the attack.

Then again, my MOS was way different than homeslice up there.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:
Originally Posted By DontBuryMe:
Probably. Judging by the training mags.

Originally Posted By SecretSquirell:
That's kinda what I was thinking. But why tape/camo up a BFA can?


I don't know about you, but my eye always got drawn to the big yellow/red square on the end of my rifle during training lol. Maybe he's trying to avoid that?

Eh maybe a bit. During my time in, I don't think I was ever given away by my BFA nor did I see it before someone was already on the attack.

Then again, my MOS was way different than homeslice up there.


So was mine.

I meant I got distracted by MY OWN blank firing adapter.
Link Posted: 1/31/2016 10:24:39 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DontBuryMe:


So was mine.

I meant I got distracted by MY OWN blank firing adapter.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By DontBuryMe:
Originally Posted By SecretSquirell:
Originally Posted By DontBuryMe:
Probably. Judging by the training mags.

Originally Posted By SecretSquirell:
That's kinda what I was thinking. But why tape/camo up a BFA can?


I don't know about you, but my eye always got drawn to the big yellow/red square on the end of my rifle during training lol. Maybe he's trying to avoid that?

Eh maybe a bit. During my time in, I don't think I was ever given away by my BFA nor did I see it before someone was already on the attack.

Then again, my MOS was way different than homeslice up there.


So was mine.

I meant I got distracted by MY OWN blank firing adapter.

It was an awesome day when I got issued a PEQ...........ooooooohhhhhhhh shiny, laser things
Link Posted: 1/31/2016 10:27:40 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:

It was an awesome day when I got issued a PEQ...........ooooooohhhhhhhh shiny, laser things
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:
Originally Posted By DontBuryMe:
Originally Posted By SecretSquirell:
Originally Posted By DontBuryMe:
Probably. Judging by the training mags.

Originally Posted By SecretSquirell:
That's kinda what I was thinking. But why tape/camo up a BFA can?


I don't know about you, but my eye always got drawn to the big yellow/red square on the end of my rifle during training lol. Maybe he's trying to avoid that?

Eh maybe a bit. During my time in, I don't think I was ever given away by my BFA nor did I see it before someone was already on the attack.

Then again, my MOS was way different than homeslice up there.


So was mine.

I meant I got distracted by MY OWN blank firing adapter.

It was an awesome day when I got issued a PEQ...........ooooooohhhhhhhh shiny, laser things


It was just really annoying to me to have that bright blotch out there lol. Drew my eye to it constantly.
Link Posted: 1/31/2016 11:24:50 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:
SO... If your going for a Navy load out, it's appropriate to call it an Mk18-1, but if your doing an Army/Marine load out it would be the M4A1 CQBR? Correct?
Did I nail it? Seems legit...
https://farm2.staticflickr.com/1663/24439562060_4a90229da7_c.jpg
View Quote


lol
Link Posted: 2/1/2016 4:21:47 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Roadblock:
Were A1 grips ever used on Mk18's?
View Quote


Mk18s? Dunno.

I do know a handful of guys who ran A1 grips on CQBRs.

Once one gets changed, they don't seem to get changed back...who asks for an A2?
Link Posted: 2/1/2016 4:42:06 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By TurbineGuy:

Colt SOCOM barrels aren't used on MK18s or CQBRs.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By TurbineGuy:
Originally Posted By H1H0AG:
My Colt SOCOM barrel finally arrived for my next project. Time to catch up on the last hundred pages or so.....

Colt SOCOM barrels aren't used on MK18s or CQBRs.


Who's policing clones now?

I've posted this before, but early in the Afghan war we received some uppers from REF that were constructed with very heavy profile barrels. I don't know if REF spec'ed them or they were COTS. Either way, they weren't/aren't "standard" issue.

Not imagining that someday an ARCOM clone thread of this OCD level would exist, I never thought to get the specs on them.

Still, I'm not a true SITW supporter because any/everything has been SITW.
Link Posted: 2/1/2016 4:56:44 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By FedDC:



I ask because it is what I was told by people that work in that world and would know...plus I have seen a few rebarreled versions that didn't appear to have Colt barrels. I'm no expert...just curious.

View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By FedDC:
Originally Posted By KILLERB6:
Originally Posted By FedDC:
Originally Posted By Combat_Diver:
Replacing a shot out barrel (swallowed the barrel erosion gage). Got everything ready to go for later after dinner. Bolt carrier is marked SDI, anyone know who made that?

http://www.hunt101.com/data/500/IMG_16316.JPG


CD


And I dare anyone to call my parts incorrect..............



Are the replacement barrels made by Colt? Someone mentioned that DD was also making barrels for the MK 18?



And the myth perpetuates itself.



I ask because it is what I was told by people that work in that world and would know...plus I have seen a few rebarreled versions that didn't appear to have Colt barrels. I'm no expert...just curious.



And I answered the way I did because:

1. Just because something is milspec, or may even have an NSN, it isn't necessarily "issue."
2. DD may or may not have made small runs of barrels and/or URGs for the military, but it doesn't make them what I would call "standard" issue (falls under the SITW/everything has been SITW disclaimer).
3. I have never seen a DD part other than rails in use.
4. CD confirmed all Colt in his experience and I would hazard to guess he's seen far more of these weapons than most people.

Now that doesn't mean DD parts aren't superior (AR-Ryan ) just that they are not commonly (ever IME) seen.
Link Posted: 2/1/2016 1:23:48 PM EDT
Hey guys got a quick question. So I finally assembled my CQBR upper, which is my first upper build. It has a DD 10.3" barrel and micro MOA gas block for when I get my SF RC. The RC should arrive to my LGS hopefully next week on a form 3, but then I'll have to wait on the form 4. I have a phase 5 pistol buffer tube on it until I get my form 1 around April. I have a standard carbine buffer and H buffer in the lower.

Before I went out and shot the rifle, I used a colt maximum head space gauge from Brownells and the headspace was fine. So I went out to zero my EXPS last Friday and after I fired the first round, it would not cycle. Every time I fired a round I had to manually cycle the bolt with the charging handle to load another round.

Before I take the gun out again, I plan on thoroughly cleaning the barrel and chamber as well as the bolt carrier. I also plan on taking the gun down and reinstalling the gas block again and going out to shoot and see if that helps. I am also going to order a H2 buffer as y'all have suggested on here. If it doesn't I will take it by my local gunsmith and let him look at it.

I was wondering if ya'll have had this problem and what would yall suggest me do next?

I appreciate the help as always!
Link Posted: 2/1/2016 1:37:13 PM EDT
[Last Edit: 2/1/2016 1:43:23 PM EDT by TinyCrumb]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Alshooter1526:
Hey guys got a quick question. So I finally assembled my CQBR upper, which is my first upper build. It has a DD 10.3" barrel and micro MOA gas block for when I get my SF RC. The RC should arrive to my LGS hopefully next week on a form 3, but then I'll have to wait on the form 4. I have a phase 5 pistol buffer tube on it until I get my form 1 around April. I have a standard carbine buffer and H buffer in the lower.

Before I went out and shot the rifle, I used a colt maximum head space gauge from Brownells and the headspace was fine. So I went out to zero my EXPS last Friday and after I fired the first round, it would not cycle. Every time I fired a round I had to manually cycle the bolt with the charging handle to load another round.

Before I take the gun out again, I plan on thoroughly cleaning the barrel and chamber as well as the bolt carrier. I also plan on taking the gun down and reinstalling the gas block again and going out to shoot and see if that helps. I am also going to order a H2 buffer as y'all have suggested on here. If it doesn't I will take it by my local gunsmith and let him look at it.

I was wondering if ya'll have had this problem and what would yall suggest me do next?

I appreciate the help as always!
View Quote

1. Changing to a heavier buffer slows down the action. It will have no positive affect on the problem you just described - it'll do just the opposite.

2. I assume by "standard carbine buffer and H buffer" you meant standard carbine spring and H buffer?

3. You need to describe the malfunction in more detail. Is it ejecting the spent casing and just not picking up another round? Is it not even ejecting a round? Is the bolt moving to the rear at all?

4. Either way, the most common problem that matches the symptoms you're having is "short stroking". Essentially the system is not getting enough gas pressure to cycle the action properly. There's most likely 1 of these things happening.

- Your gas block could be slightly misaligned. If your gas block is not perfectly aligned, then the block itself will be covering up part of the gas port in the barrel. This will prevent enough gas pressure from entering the system to cycle the action. The solution is to re-install the gas block and make 100% certain that it's aligned correctly. This is the most common and most likely scenario. The front set screw hole on most gas blocks is perfectly opposite the port hole. So the best way to test this is turn the gas block on the barrel 180 degrees so that the port hole is perfectly aligned with the set screw hole. Then make a small pencil mark on the other side in the middle of where the raised part of the gas block is. Then slide the gas block off a bit and see if your pencil mark perfectly aligns with the dimples on your barrel (of if no dimples, the marks from the set screw of where it was previously installed).

- You have your adjustable gas block set on too low of a setting. The gas block you're using comes with different settings for unsuppressed and suppressed use. If you have it set on the suppressed setting and don't have a can on, then there won't be enough back pressure to get enough gas in to the system to cycle the action. Additionally, it's possibly that the "unsuppressed" setting is not big enough. This is less likely but it could be an issue depending on what carrier, buffer, spring and ammo combination you're using. I.e., if you were using an H2 buffer, stronger weight spring, cheap steel ammo, even a .070 fully unrestricted gas port wouldn't function. Since you're using an H buffer and standard spring, as long as you're using standard power ammo, it should function. But I'm unfamiliar with what size micro MOA does their "unsuppressed" gas block at and it could be that it's not open enough. If your gas block is aligned properly and on the "unsuppressed" setting and still short strokes, I'd try installing a non-adjustable block to test function.

- The barrel's gas port could be too small. This is the least likely scenario given that you mentioned it's a DD factory barrel.
Link Posted: 2/1/2016 2:03:43 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Alshooter1526:
Hey guys got a quick question. So I finally assembled my CQBR upper, which is my first upper build. It has a DD 10.3" barrel and micro MOA gas block for when I get my SF RC. The RC should arrive to my LGS hopefully next week on a form 3, but then I'll have to wait on the form 4. I have a phase 5 pistol buffer tube on it until I get my form 1 around April. I have a standard carbine buffer and H buffer in the lower.

Before I went out and shot the rifle, I used a colt maximum head space gauge from Brownells and the headspace was fine. So I went out to zero my EXPS last Friday and after I fired the first round, it would not cycle. Every time I fired a round I had to manually cycle the bolt with the charging handle to load another round.

Before I take the gun out again, I plan on thoroughly cleaning the barrel and chamber as well as the bolt carrier. I also plan on taking the gun down and reinstalling the gas block again and going out to shoot and see if that helps. I am also going to order a H2 buffer as y'all have suggested on here. If it doesn't I will take it by my local gunsmith and let him look at it.

I was wondering if ya'll have had this problem and what would yall suggest me do next?

I appreciate the help as always!
View Quote

My first guess would be that with the MicroMOA GB, you have it on a suppressed setting, but clearly aren't running a can.
Link Posted: 2/1/2016 2:32:59 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Alshooter1526:
Hey guys got a quick question. So I finally assembled my CQBR upper, which is my first upper build. It has a DD 10.3" barrel and micro MOA gas block for when I get my SF RC. The RC should arrive to my LGS hopefully next week on a form 3, but then I'll have to wait on the form 4. I have a phase 5 pistol buffer tube on it until I get my form 1 around April. I have a standard carbine buffer and H buffer in the lower.

Before I went out and shot the rifle, I used a colt maximum head space gauge from Brownells and the headspace was fine. So I went out to zero my EXPS last Friday and after I fired the first round, it would not cycle. Every time I fired a round I had to manually cycle the bolt with the charging handle to load another round.

Before I take the gun out again, I plan on thoroughly cleaning the barrel and chamber as well as the bolt carrier. I also plan on taking the gun down and reinstalling the gas block again and going out to shoot and see if that helps. I am also going to order a H2 buffer as y'all have suggested on here. If it doesn't I will take it by my local gunsmith and let him look at it.

I was wondering if ya'll have had this problem and what would yall suggest me do next?

I appreciate the help as always!
View Quote
Where did you get the barrel, and what ammo are you using?
Link Posted: 2/1/2016 2:49:53 PM EDT
[Last Edit: 2/1/2016 2:51:00 PM EDT by Combat_Diver]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Alshooter1526:
Hey guys got a quick question. So I finally assembled my CQBR upper, which is my first upper build. It has a DD 10.3" barrel and micro MOA gas block for when I get my SF RC. The RC should arrive to my LGS hopefully next week on a form 3, but then I'll have to wait on the form 4. I have a phase 5 pistol buffer tube on it until I get my form 1 around April. I have a standard carbine buffer and H buffer in the lower.

Before I went out and shot the rifle, I used a colt maximum head space gauge from Brownells and the headspace was fine. So I went out to zero my EXPS last Friday and after I fired the first round, it would not cycle. Every time I fired a round I had to manually cycle the bolt with the charging handle to load another round.

Before I take the gun out again, I plan on thoroughly cleaning the barrel and chamber as well as the bolt carrier. I also plan on taking the gun down and reinstalling the gas block again and going out to shoot and see if that helps. I am also going to order a H2 buffer as y'all have suggested on here. If it doesn't I will take it by my local gunsmith and let him look at it.

I was wondering if ya'll have had this problem and what would yall suggest me do next?

I appreciate the help as always!
View Quote


Concur with others and would throw one more thing to look at. Check your gas block to ensure the gas port is milled properly. I got a issued gas block that the gas port was drilled on the wrong side or gas tube pin hole wrong (don't remember) I caught it when installing the gas tube pin (they were on the same side).

CD

Link Posted: 2/1/2016 4:19:13 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By TinyCrumb:

1. Changing to a heavier buffer slows down the action. It will have no positive affect on the problem you just described - it'll do just the opposite.

2. I assume by "standard carbine buffer and H buffer" you meant standard carbine spring and H buffer?

3. You need to describe the malfunction in more detail. Is it ejecting the spent casing and just not picking up another round? Is it not even ejecting a round? Is the bolt moving to the rear at all?

4. Either way, the most common problem that matches the symptoms you're having is "short stroking". Essentially the system is not getting enough gas pressure to cycle the action properly. There's most likely 1 of these things happening.

- Your gas block could be slightly misaligned. If your gas block is not perfectly aligned, then the block itself will be covering up part of the gas port in the barrel. This will prevent enough gas pressure from entering the system to cycle the action. The solution is to re-install the gas block and make 100% certain that it's aligned correctly. This is the most common and most likely scenario. The front set screw hole on most gas blocks is perfectly opposite the port hole. So the best way to test this is turn the gas block on the barrel 180 degrees so that the port hole is perfectly aligned with the set screw hole. Then make a small pencil mark on the other side in the middle of where the raised part of the gas block is. Then slide the gas block off a bit and see if your pencil mark perfectly aligns with the dimples on your barrel (of if no dimples, the marks from the set screw of where it was previously installed).

- You have your adjustable gas block set on too low of a setting. The gas block you're using comes with different settings for unsuppressed and suppressed use. If you have it set on the suppressed setting and don't have a can on, then there won't be enough back pressure to get enough gas in to the system to cycle the action. Additionally, it's possibly that the "unsuppressed" setting is not big enough. This is less likely but it could be an issue depending on what carrier, buffer, spring and ammo combination you're using. I.e., if you were using an H2 buffer, stronger weight spring, cheap steel ammo, even a .070 fully unrestricted gas port wouldn't function. Since you're using an H buffer and standard spring, as long as you're using standard power ammo, it should function. But I'm unfamiliar with what size micro MOA does their "unsuppressed" gas block at and it could be that it's not open enough. If your gas block is aligned properly and on the "unsuppressed" setting and still short strokes, I'd try installing a non-adjustable block to test function.

- The barrel's gas port could be too small. This is the least likely scenario given that you mentioned it's a DD factory barrel.
View Quote



Thanks for the feed back!

Here are the specs that were asked about:
-I'm using a carbine buffer spring and a H buffer.
-I used new manufacture Ventura Munitions 62gr 5.56 ammo
-I picked the barrel up used here from another user that had put around 500 rounds through it
-the govnah I am using is a two position milspec plate at .049/.070


After the initial failure to cycle on the first round, I shot 4 more on the .070 setting. When that didn't work, I tried the .049 setting even though its for suppressed use. So every time I fired a round, the bolt would not pick up another round. So I would fire a round, then have to pull the charging handle to load another round. Hope these updates clarify it some.

At least my question is adding a new topic to discuss.


Link Posted: 2/1/2016 4:31:25 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Alshooter1526:
Thanks for the feed back!

Here are the specs that were asked about:
-I'm using a carbine buffer spring and a H buffer.
-I used new manufacture Ventura Munitions 62gr 5.56 ammo
-I picked the barrel up used here from another user that had put around 500 rounds through it
-the govnah I am using is a two position milspec plate at .049/.070


After the initial failure to cycle on the first round, I shot 4 more on the .070 setting. When that didn't work, I tried the .049 setting even though its for suppressed use. So every time I fired a round, the bolt would not pick up another round. So I would fire a round, then have to pull the charging handle to load another round. Hope these updates clarify it some.

At least my question is adding a new topic to discuss.
View Quote

You still didn't mention whether or not it's ejecting the spent casing. When you manually cycle the action is there a spent casing still in the chamber that gets ejected or is it already gone?

Either way, previous posts still apply. Mostly likely candidate is still misaligned gas block, followed by gas block issue, followed by barrel issue.

That said, .070 is on the smaller side for unsuppressed use. If you're not using full power ammo you can experience short stroking. If everything else checks out, I'd drop to a carbine buffer and try some mil-spec 193 or 855 and see if that helps.
Link Posted: 2/1/2016 5:38:04 PM EDT
[Last Edit: 2/1/2016 5:40:31 PM EDT by amphibian]
Link Posted: 2/1/2016 5:50:00 PM EDT
Big thanks to DBM and his sandwich manufacturer. After assembling a second Colt upper, I quickly realized how much I regretted getting rid of my spare M4 RAS'

And squirrel if you read this, it's coming soon buddy. I promise.

Link Posted: 2/1/2016 5:52:03 PM EDT
Its not ejecting at all unless I manually eject. If I can remember right, it may have ejected on its own once.

I'll take apart the gun and re-instal the govnah. As this is my first time assembling an AR, these problems are all new to me.

Thanks again!
Link Posted: 2/1/2016 6:25:46 PM EDT
[Last Edit: 2/1/2016 6:28:03 PM EDT by Eyekahn]
SU231 is on its way.
ADCO has barrel.
Larue rail is on its way.
KAC 300M is on its way.
KAC VFG is here.

Colt upper and lower are patiently waiting....

Trying to decide on the weapon light. I've had the insight with tape switch and Surefire M300V. Both were lacking in the lumen department. It won't be used with NVG and I'd like 300+ lumens on a light that has been seen in the wild. Any suggestions?
Page / 902
Top Top