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Mk 18 / CQBR (Page 1515 of 1565)
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Link Posted: 5/12/2022 11:05:42 PM EDT
[#1]
SEALs during Balikatan 22


Link Posted: 5/13/2022 2:16:10 PM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By TinyCrumb:

Thx dude, appreciate it.

I honestly forgot that I used those, but you're right, I do remember picking a few up like 10 years ago and put them on some of my lowers. I think at the time I was frustrated with 4-position tubes because the sopmod stock is so long that with kit on I needed a position between 1 and 2. They've just sort of been on my lowers ever since. They do seem to fit most of my stocks pretty well.
View Quote
100% agree! (Except I just have short stubby arms.)
Link Posted: 5/13/2022 3:45:12 PM EDT
[Last Edit: TCBA_Joe] [#3]
Link Posted: 5/13/2022 5:37:35 PM EDT
[#4]
Still some more work to do but is coming along

Also, day 84 for SF Socom eFile, so hope to have that soon.

Attachment Attached File
Link Posted: 5/13/2022 8:12:46 PM EDT
[Last Edit: AZ_SBR] [#5]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By TinyCrumb:

Thx dude, appreciate it.

I honestly forgot that I used those, but you're right, I do remember picking a few up like 10 years ago and put them on some of my lowers. I think at the time I was frustrated with 4-position tubes because the sopmod stock is so long that with kit on I needed a position between 1 and 2. They've just sort of been on my lowers ever since. They do seem to fit most of my stocks pretty well.
View Quote


Joined the Teflon gray gang today. The fit and finish is so nice compared to my Colt 4-position receiver extension. No more slop in the stock; snug fitment like God intended it.

And yes, that's a Damage Industries enhanced spring because "SPROING!" is annoying.



Link Posted: 5/14/2022 1:29:26 PM EDT
[#6]
Discussion ForumsJump to Quoted PostQuote History


Very elegant.  A weapon for a more civilzed time.
Link Posted: 5/14/2022 3:00:46 PM EDT
[#7]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Novak:

Very elegant.  A weapon for a more civilzed time.
View Quote

Anything less would be uncivilized.
Link Posted: 5/14/2022 3:49:21 PM EDT
[#8]
One of my favorite setups...

Link Posted: 5/14/2022 5:16:27 PM EDT
[#9]
Sighted it in today.  Not an exact clone, but close enough for me.  Need to figure out a light and then decide on an optic.  Pockets aren't deep enough for an elcan.

Attachment Attached File
Link Posted: 5/15/2022 10:34:45 PM EDT
[#10]
Colt 10.3 barrels are onsale on midway $179 only 17 left.
Link Posted: 5/15/2022 11:11:37 PM EDT
[#11]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BlueDevilBrew:
One of my favorite setups...

https://i.postimg.cc/V6SPHV0J/IMG-3655.jpg
View Quote


Every time I see a setup like this I want to ditch my elcan for it, but afterwards I'll see an elcan setup and want to go back to it.
Link Posted: 5/15/2022 11:20:03 PM EDT
[#12]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By apocalypserisin:


Every time I see a setup like this I want to ditch my elcan for it, but afterwards I'll see an elcan setup and want to go back to it.
View Quote View All Quotes
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By apocalypserisin:
Originally Posted By BlueDevilBrew:
One of my favorite setups...

https://i.postimg.cc/V6SPHV0J/IMG-3655.jpg


Every time I see a setup like this I want to ditch my elcan for it, but afterwards I'll see an elcan setup and want to go back to it.
That's why you need both.
Link Posted: 5/15/2022 11:31:20 PM EDT
[#13]
Link Posted: 5/16/2022 1:13:51 AM EDT
[#14]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By JLAudio:

Members of U.S. Naval Special Warfare Task Unit Europe (NSWTU-E) gear up for night-time DA (Direct Action) training alongside Croatian SOFCOM – Zapovjedništvo specijalnih snaga (ZSS) during Exercise Trojan Footprint 22 in Split, Croatia, May 8, 2022

https://i.imgur.com/OiO9033.jpg
https://i.imgur.com/Bp56L3M.jpg
https://i.imgur.com/nUuZVWo.jpg
View Quote


Streamlight ProTac Rail Mount 2 in the first pic?
Link Posted: 5/16/2022 1:43:28 AM EDT
[#15]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Weasel_Master:
Sighted it in today.  Not an exact clone, but close enough for me.  Need to figure out a light and then decide on an optic.  Pockets aren't deep enough for an elcan.

https://www.ar15.com/media/mediaFiles/78037/20220514_153228_jpg-2383822.JPG
View Quote

I would suggest either a T1 or T2.

CD
Link Posted: 5/16/2022 11:55:52 AM EDT
[#16]
Guys, I havent been as active on this thread lately due to me having an affair spending most of my time with my 12.5" lately.  I am glad to announce my Block 2 it is out in my truck waiting for me to leave the office in an hour to go and rekindle the flame with her...  I have missed her and will be posting photos in the next couple of days...  Wish me luck with the old girl, I hope she doesnt hold it against me...  

Old Pic...
Link Posted: 5/16/2022 8:19:48 PM EDT
[#17]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By TigerHawk:
https://i.imgur.com/T8IKoeE.jpg
View Quote



@TigerHawk

Can you estimate how much the set up weighs like it is in the picture?

Thanks

Bronc
Link Posted: 5/17/2022 9:31:41 AM EDT
[#18]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By 77Bronc:



@TigerHawk

Can you estimate how much the set up weighs like it is in the picture?

Thanks

Bronc
View Quote



Around 10lbs on the bathroom scale.
Link Posted: 5/17/2022 12:24:12 PM EDT
[#19]
With 77s and sling included, 10lbs, 15.5oz
Link Posted: 5/17/2022 1:26:14 PM EDT
[#20]
PRI gas buster or Geissele ACH?
Link Posted: 5/17/2022 2:23:04 PM EDT
[#21]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Combat_Diver:

I would suggest either a T1 or T2.

CD
View Quote


I appreciate the recommendation.  I was on the fence about an EOTech but the battery life and reliability of the Aimpoints are important to me.

I can see the severe benefit of an RC2 in enclosed spaces.  Shooting this under my covered range was quite a decent concussion.
Link Posted: 5/17/2022 2:36:06 PM EDT
[#22]
The date went well...  We picked up right where we left off...  



Link Posted: 5/18/2022 3:51:12 PM EDT
[Last Edit: Dyzastr] [#23]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By AstraPat:


Streamlight ProTac Rail Mount 2 in the first pic?
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By AstraPat:
Originally Posted By JLAudio:

Members of U.S. Naval Special Warfare Task Unit Europe (NSWTU-E) gear up for night-time DA (Direct Action) training alongside Croatian SOFCOM  Zapovjednitvo specijalnih snaga (ZSS) during Exercise Trojan Footprint 22 in Split, Croatia, May 8, 2022

https://i.imgur.com/OiO9033.jpg
https://i.imgur.com/Bp56L3M.jpg
https://i.imgur.com/nUuZVWo.jpg


Streamlight ProTac Rail Mount 2 in the first pic?
That's what it looks like. I looked right over that.

Originally Posted By Combat_Diver:
Originally Posted By Weasel_Master:
Sighted it in today.  Not an exact clone, but close enough for me.  Need to figure out a light and then decide on an optic.  Pockets aren't deep enough for an elcan.

https://www.ar15.com/media/mediaFiles/78037/20220514_153228_jpg-2383822.JPG

I would suggest either a T1 or T2.

CD
I've been seeing some great deals on used T1's. I'm considering going this route.

Originally Posted By Jlgil73:The date went well...  We picked up right where we left off...  


https://live.staticflickr.com/65535/52080556911_a90f973565_k.jpg


https://live.staticflickr.com/65535/52080557668_025e5b0ae1_k.jpg
I see she is into threesomes.




Link Posted: 5/18/2022 3:59:07 PM EDT
[#24]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Dyzastr:

I've been seeing some great deals on used T1's. I'm considering going this route.

View Quote


I recently replaced the eotech on mine with a t1 for the battery life.  Only bad thing I have to say about the t1 is you don't get a very clear dot if you use a magnifier behind it.
Link Posted: 5/19/2022 3:20:01 PM EDT
[#25]
Can’t seem to find it. Which is more “correct” for a CQBR lower, the square or the rectangle UID?
Link Posted: 5/19/2022 7:26:37 PM EDT
[#26]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By skywalkindude:
Can't seem to find it. Which is more "correct" for a CQBR lower, the square or the rectangle UID?
View Quote
Both
Link Posted: 5/19/2022 9:36:34 PM EDT
[#27]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By skywalkindude:
Can’t seem to find it. Which is more “correct” for a CQBR lower, the square or the rectangle UID?
View Quote


Depends. The rectangle is usually associated with USASOC guns and the square MARSOC. I'm not sure if that's a hard and fast rule, but I can't recall ever seeing an Army-style rectangle on any clearly MARSOC guns.  

I've got a square on both my Block IIs and a custom-sized rectangle on my Block I (to mimic some old UIDs I've seen on Army depot serviced lowers/guns). The square on my NT4 host Block II would be the correct one, but at the time I put the square on my RC host, I wasn't really thinking about or concerned over whether it was branch-specific -- I just went with the style I preferred. In hindsight, I probably should've done an Army-style rectangle; I've got one for it, but I've yet to feel the motivation to change it, heh.
Link Posted: 5/19/2022 11:59:39 PM EDT
[#28]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By krdt:


Depends. The rectangle is usually associated with USASOC guns and the square MARSOC. I'm not sure if that's a hard and fast rule, but I can't recall ever seeing an Army-style rectangle on any clearly MARSOC guns.  

I've got a square on both my Block IIs and a custom-sized rectangle on my Block I (to mimic some old UIDs I've seen on Army depot serviced lowers/guns). The square on my NT4 host Block II would be the correct one, but at the time I put the square on my RC host, I wasn't really thinking about or concerned over whether it was branch-specific -- I just went with the style I preferred. In hindsight, I probably should've done an Army-style rectangle; I've got one for it, but I've yet to feel the motivation to change it, heh.
View Quote
There is definitely trends of units/branches favoring one style or having their own unique one.
Link Posted: 5/20/2022 1:15:40 PM EDT
[#29]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By mdavis:
Good reading for those of you with Warcomps who shoot with a RC/RC2 who haven't been aware of this topic from almost a year ago.

https://pewscience.com/sound-signature-reviews-free/sss-6-52-surefire-556rc2-mk18-556

ETA: For the TL;DR crowd, if you shoot suppressed the majority of the time, ditch the Warcomp and get the FH (or brake).
View Quote


Thank you for highlighting my work. I hope it is useful for the community at large.

Jay
PEW Science
Link Posted: 5/20/2022 7:30:29 PM EDT
[#30]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By krdt:


Depends. The rectangle is usually associated with USASOC guns and the square MARSOC. I'm not sure if that's a hard and fast rule, but I can't recall ever seeing an Army-style rectangle on any clearly MARSOC guns.  

I've got a square on both my Block IIs and a custom-sized rectangle on my Block I (to mimic some old UIDs I've seen on Army depot serviced lowers/guns). The square on my NT4 host Block II would be the correct one, but at the time I put the square on my RC host, I wasn't really thinking about or concerned over whether it was branch-specific -- I just went with the style I preferred. In hindsight, I probably should've done an Army-style rectangle; I've got one for it, but I've yet to feel the motivation to change it, heh.
View Quote
From the marine corps museum, popped up in the clone group on FB at the right time lol.

Attachment Attached File

Link Posted: 5/20/2022 8:01:13 PM EDT
[#31]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By LsuJon:
From the marine corps museum, popped up in the clone group on FB at the right time lol.

https://www.ar15.com/media/mediaFiles/316069/5077EEF1-8779-4AF4-A158-DCDE60AC4319_jpe-2391035.JPG
View Quote View All Quotes
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By LsuJon:
Originally Posted By krdt:


Depends. The rectangle is usually associated with USASOC guns and the square MARSOC. I'm not sure if that's a hard and fast rule, but I can't recall ever seeing an Army-style rectangle on any clearly MARSOC guns.  

I've got a square on both my Block IIs and a custom-sized rectangle on my Block I (to mimic some old UIDs I've seen on Army depot serviced lowers/guns). The square on my NT4 host Block II would be the correct one, but at the time I put the square on my RC host, I wasn't really thinking about or concerned over whether it was branch-specific -- I just went with the style I preferred. In hindsight, I probably should've done an Army-style rectangle; I've got one for it, but I've yet to feel the motivation to change it, heh.
From the marine corps museum, popped up in the clone group on FB at the right time lol.

https://www.ar15.com/media/mediaFiles/316069/5077EEF1-8779-4AF4-A158-DCDE60AC4319_jpe-2391035.JPG

Did they weld the upper and lower together?
Link Posted: 5/20/2022 8:11:26 PM EDT
[#32]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SecretSquirell:

Did they weld the upper and lower together?
View Quote
Why yes, yes they did

per OP of the original post, MARSOC did that before turning over the rifle.
Link Posted: 5/20/2022 8:17:29 PM EDT
[#33]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By LsuJon:
Why yes, yes they did

per OP of the original post, MARSOC did that before turning over the rifle.
View Quote View All Quotes
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By LsuJon:
Originally Posted By SecretSquirell:

Did they weld the upper and lower together?
Why yes, yes they did

per OP of the original post, MARSOC did that before turning over the rifle.

I'll bet there's no BCG in it.
Link Posted: 5/20/2022 11:52:29 PM EDT
[Last Edit: Dyzastr] [#34]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By joegoos:


I recently replaced the eotech on mine with a t1 for the battery life.  Only bad thing I have to say about the t1 is you don't get a very clear dot if you use a magnifier behind it.
View Quote View All Quotes
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By joegoos:
Originally Posted By Dyzastr:

I've been seeing some great deals on used T1's. I'm considering going this route.



I recently replaced the eotech on mine with a t1 for the battery life.  Only bad thing I have to say about the t1 is you don't get a very clear dot if you use a magnifier behind it.
Did you get the 2moa?

Originally Posted By LsuJon:
Originally Posted By krdt:


Depends. The rectangle is usually associated with USASOC guns and the square MARSOC. I'm not sure if that's a hard and fast rule, but I can't recall ever seeing an Army-style rectangle on any clearly MARSOC guns.  

I've got a square on both my Block IIs and a custom-sized rectangle on my Block I (to mimic some old UIDs I've seen on Army depot serviced lowers/guns). The square on my NT4 host Block II would be the correct one, but at the time I put the square on my RC host, I wasn't really thinking about or concerned over whether it was branch-specific -- I just went with the style I preferred. In hindsight, I probably should've done an Army-style rectangle; I've got one for it, but I've yet to feel the motivation to change it, heh.
From the marine corps museum, popped up in the clone group on FB at the right time lol.

https://www.ar15.com/media/mediaFiles/316069/5077EEF1-8779-4AF4-A158-DCDE60AC4319_jpe-2391035.JPG

That elcan!
Link Posted: 5/22/2022 2:51:50 PM EDT
[#35]
Did they military ever used the black version of the Daniel Defense RIS II for the MK18? Or did they only use the FDE colour?
Link Posted: 5/22/2022 3:19:05 PM EDT
[#36]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Semafoor:
Did they military ever used the black version of the Daniel Defense RIS II for the MK18? Or did they only use the FDE colour?
View Quote
Yes in small quantities that were probably unit purchased uppers
Link Posted: 5/22/2022 5:24:17 PM EDT
[#37]
How about a black RC2?
Link Posted: 5/22/2022 6:55:42 PM EDT
[Last Edit: leerx] [#38]
Hey gang, its been a while

How rare are the Eotech SU-231a NAVSEA's now?

Link Posted: 5/22/2022 7:48:53 PM EDT
[Last Edit: TGWLDR] [#39]
How about a favor for a gun whore?

I'm planning a cut down on a 6921 bbl, I just wanted to confirm a dimension....looking for a measurement from the journal step ahead of the FSBGB to the shoulder where the MD seats.

Tig

Edit: .700" sound accurate
Link Posted: 5/22/2022 9:49:15 PM EDT
[Last Edit: FONTY] [#40]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By TGWLDR:
How about a favor for a gun whore?

I'm planning a cut down on a 6921 bbl, I just wanted to confirm a dimension....looking for a measurement from the journal step ahead of the FSBGB to the shoulder where the MD seats.

Tig

Edit: .700" sound accurate
View Quote

@TGWLDR
Hey Tig, did a quick measurement for you and come up with roughly .370 just under 3/8. Couldn’t hold the micrometer and take pic.
Lmk if you need any more measurements or pic’s.

Attachment Attached File

Attachment Attached File
Link Posted: 5/22/2022 10:00:57 PM EDT
[#41]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By FONTY:

@TGWLDR
Hey Tig, did a quick measurement for you and come up with roughly .370 just under 3/8. Couldn’t hold the micrometer and take pic.
Lmk if you need any more measurements or pic’s.

https://www.ar15.com/media/mediaFiles/236598/7CC8E8AE-15F2-410C-BBB7-BC9A7FC5330C_jpe-2393819.JPG
https://www.ar15.com/media/mediaFiles/236598/3A52E710-2464-4734-9D4F-B7EEE525820B_jpe-2393820.JPG
View Quote

@FONTY

Thanks man, much appreciated. You're good people.


Somehow I got ahold of a drawing for a Criterion barrel with a .700" dimension and that seemed all sorts of wrong.
Link Posted: 5/22/2022 10:09:17 PM EDT
[#42]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By TGWLDR:

@FONTY

Thanks man, much appreciated. You're good people.


Somehow I got ahold of a drawing for a Criterion barrel with a .700" dimension and that seemed all sorts of wrong.
View Quote

Your welcome anytime
Here’s a drawing posted here awhile back by members.

Attachment Attached File
Link Posted: 5/22/2022 10:22:30 PM EDT
[#43]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By FONTY:

Your welcome anytime
Here’s a drawing posted here awhile back by members.

https://www.ar15.com/media/mediaFiles/236598/B88FE33E-FAB9-4E25-99B3-9A8611FDA800_jpe-2393855.JPG
View Quote

Perfect. Again, much appreciated.
Link Posted: 5/22/2022 10:25:41 PM EDT
[Last Edit: krdt] [#44]
Originally Posted By LsuJon:
From the marine corps museum, popped up in the clone group on FB at the right time lol.

https://www.ar15.com/media/mediaFiles/316069/5077EEF1-8779-4AF4-A158-DCDE60AC4319_jpe-2391035.JPG
View Quote


Nice -- good to know. Extra bonus points if you can track down a square on a known USASOC gun, lol.

Originally Posted By FONTY:

Your welcome anytime
Here’s a drawing posted here awhile back by members.

https://www.ar15.com/media/mediaFiles/236598/B88FE33E-FAB9-4E25-99B3-9A8611FDA800_jpe-2393855.JPG
View Quote


I should point out (and should've done so on the drawing) that the update was based on a factory Colt 10.3" and some measurements taken by CD -- but it's worth mentioning that DD barrels are a bit shorter and Crane cutdowns might be as well. There was a whole discussion about it, but I can't recall all the details.

To cover all the bases, here is an updated drawing based on the further discussion (I can't find the original drawing from pezboytate or I'd post that as well):



Edit: Nm, found it.

Link Posted: 5/22/2022 10:32:08 PM EDT
[#45]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By krdt:


Nice -- good to know. Extra bonus points if you can track down a square on a known USASOC gun, lol.



I should point out (and should've done so on the drawing) that the update was based on a factory Colt 10.3" and some measurements taken by CD -- but it's worth mentioning that DD barrels are a bit shorter and Crane cutdowns might be as well. There was a whole discussion about it, but I can't recall all the details.

To cover all the bases, here is an updated drawing based on the further discussion (I can't find the original drawing from pezboytate or I'd post that as well):

https://i.imgur.com/ApEkn5m.jpg


View Quote View All Quotes
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Originally Posted By krdt:
Originally Posted By LsuJon:
From the marine corps museum, popped up in the clone group on FB at the right time lol.

https://www.ar15.com/media/mediaFiles/316069/5077EEF1-8779-4AF4-A158-DCDE60AC4319_jpe-2391035.JPG


Nice -- good to know. Extra bonus points if you can track down a square on a known USASOC gun, lol.

Originally Posted By FONTY:

Your welcome anytime
Here’s a drawing posted here awhile back by members.

https://www.ar15.com/media/mediaFiles/236598/B88FE33E-FAB9-4E25-99B3-9A8611FDA800_jpe-2393855.JPG


I should point out (and should've done so on the drawing) that the update was based on a factory Colt 10.3" and some measurements taken by CD -- but it's worth mentioning that DD barrels are a bit shorter and Crane cutdowns might be as well. There was a whole discussion about it, but I can't recall all the details.

To cover all the bases, here is an updated drawing based on the further discussion (I can't find the original drawing from pezboytate or I'd post that as well):

https://i.imgur.com/ApEkn5m.jpg



Thank you as well krdt.
Link Posted: 5/22/2022 10:34:34 PM EDT
[#46]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By krdt:


Nice -- good to know. Extra bonus points if you can track down a square on a known USASOC gun, lol.



I should point out (and should've done so on the drawing) that the update was based on a factory Colt 10.3" and some measurements taken by CD -- but it's worth mentioning that DD barrels are a bit shorter and Crane cutdowns might be as well. There was a whole discussion about it, but I can't recall all the details.

To cover all the bases, here is an updated drawing based on the further discussion (I can't find the original drawing from pezboytate or I'd post that as well):

https://i.imgur.com/ApEkn5m.jpg

Edit: Nm, found it.

https://i.imgur.com/681ZKJE.png
View Quote


My FN SOCOM was the shortest I measured at 10.700" OAL, the DD's I measured were at 10.720" OAL.

I haven't measured any CRANE cut down barrels.

I haven't seen any evidence Colt 10.3"s were issued, but they were longer than the DD FWIW.
Link Posted: 5/22/2022 10:36:09 PM EDT
[#47]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By krdt:


Nice -- good to know. Extra bonus points if you can track down a square on a known USASOC gun, lol.



I should point out (and should've done so on the drawing) that the update was based on a factory Colt 10.3" and some measurements taken by CD -- but it's worth mentioning that DD barrels are a bit shorter and Crane cutdowns might be as well. There was a whole discussion about it, but I can't recall all the details.

To cover all the bases, here is an updated drawing based on the further discussion (I can't find the original drawing from pezboytate or I'd post that as well):

https://i.imgur.com/ApEkn5m.jpg

Edit: Nm, found it.

https://i.imgur.com/gKkB5eY.png
View Quote


The bottom drawing was the initial 10.3" RIS II documentation I found. It is probable that they mistakenly down .60" for the thread length instead of .63".
Link Posted: 5/22/2022 10:45:14 PM EDT
[Last Edit: krdt] [#48]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By pezboytate:


My FN SOCOM was the shortest I measured at 10.700" OAL, the DD's I measured were at 10.720" OAL.

I haven't measured any CRANE cut down barrels.

I haven't seen any evidence Colt 10.3"s were issued, but they were longer than the DD FWIW.
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Originally Posted By pezboytate:
Originally Posted By krdt:


Nice -- good to know. Extra bonus points if you can track down a square on a known USASOC gun, lol.



I should point out (and should've done so on the drawing) that the update was based on a factory Colt 10.3" and some measurements taken by CD -- but it's worth mentioning that DD barrels are a bit shorter and Crane cutdowns might be as well. There was a whole discussion about it, but I can't recall all the details.

To cover all the bases, here is an updated drawing based on the further discussion (I can't find the original drawing from pezboytate or I'd post that as well):

https://i.imgur.com/ApEkn5m.jpg

Edit: Nm, found it.

https://i.imgur.com/681ZKJE.png


My FN SOCOM was the shortest I measured at 10.700" OAL, the DD's I measured were at 10.720" OAL.

I haven't measured any CRANE cut down barrels.

I haven't seen any evidence Colt 10.3"s were issued, but they were longer than the DD FWIW.


Ah, that's right -- I couldn't remember where I got the 10.700" OAL at the low end from. FN.

I think the factory Colt was the longest and where I got the 10.75" OAL. For reference, here is a Crane cutdown next to a factory FN SOCOM (photo by CD). Looks like it'd be around the DD measurement and I'd assume they vary within the acceptable range.

Attachment Attached File


Edit: To summarize all that clone babble, lol... as long as you land somewhere between 10.70" and 10.75" OAL with a 10.35" measurement from the bolt face, you'll be good Tig.

I'd probably go for the DD measurement of 10.72" if you're going to use it with a RIS II -- that'll give you a shoulder that lines up perfectly with the end of the rail.
Link Posted: 5/22/2022 11:55:38 PM EDT
[#49]
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Originally Posted By Dyzastr:
Did you get the 2moa?
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Originally Posted By Dyzastr:
Originally Posted By joegoos:
Originally Posted By Dyzastr:

I've been seeing some great deals on used T1's. I'm considering going this route.



I recently replaced the eotech on mine with a t1 for the battery life.  Only bad thing I have to say about the t1 is you don't get a very clear dot if you use a magnifier behind it.
Did you get the 2moa?


Yah 2 moa.  Someone did a t1 vs t2 comparison I saw that shows the t1 dot is more like a comma than a period under magnification so was aware of it when I got it.  I only use a magnifier to zero and don't like how t2s look so wasn't a deal breaker for me.
Link Posted: 5/23/2022 1:25:27 AM EDT
[#50]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By joegoos:


Yah 2 moa.  Someone did a t1 vs t2 comparison I saw that shows the t1 dot is more like a comma than a period under magnification so was aware of it when I got it.  I only use a magnifier to zero and don't like how t2s look so wasn't a deal breaker for me.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By joegoos:
Originally Posted By Dyzastr:
Originally Posted By joegoos:
Originally Posted By Dyzastr:

I've been seeing some great deals on used T1's. I'm considering going this route.



I recently replaced the eotech on mine with a t1 for the battery life.  Only bad thing I have to say about the t1 is you don't get a very clear dot if you use a magnifier behind it.
Did you get the 2moa?


Yah 2 moa.  Someone did a t1 vs t2 comparison I saw that shows the t1 dot is more like a comma than a period under magnification so was aware of it when I got it.  I only use a magnifier to zero and don't like how t2s look so wasn't a deal breaker for me.
Gotcha. I've found that aimpoint's dots are hit or miss. Not sure if it's the same with t1's and t2's, but it took me 5 tries to find an aimpoint m68 cco that didn't look like a comma of some sort. The comma appearance tends to be more exaggerated on the brighter settings. I finally settled for a 2moa comp m3. It's the clearest dot I could find. I know the m3 is not technically correct on a mod0, but I went with it anyway.

(Not sure why had my aimpoint so close to the rear sight)
Attachment Attached File



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