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Posted: 12/7/2016 10:16:31 PM EST
So, I sold my DD MK18 CQBR upper because I was bored of it. It seems all the cool kids have one, and I want to be more of a hipster with my rifles.

In all seriousness, I just wasn't a huge fan of the quad rail thing.  Great upper, loved the way it shoots, just didn't feel right in my hands.  I want something a little more streamlined.

I'm considering a URX3.1 and an 11.5" barrel, or a Geissele (undecided on model).  I am also seriously considering a 7.62x39 upper.  I already have several 5.56 SBRs and an AK and have plenty of x39.  I don't want to add another caliber, so 300 BLK is out.   The only thing making me hesitant about x39 is having to add new magazines to the armory, and I have no idea how reliable the x39 is in the AR platform. I've read mixed reviews.

Thoughts? Ideas? Sources for URX or Geissele rails? Alternatives?

This will be mostly for range use, and of course Mutant Zombie Bikers.

Thanks.
Link Posted: 12/7/2016 10:25:56 PM EST
[Last Edit: 12/7/2016 10:27:58 PM EST by RJeff21]
12.5"" barrel with a 12" ALG EMR rail. Super slim and is very comfortable. Works even better if you have a Silencerco Saker.

This used to be a CQBR upper.

Attachment Attached File
Link Posted: 12/7/2016 10:38:00 PM EST
[Last Edit: 12/7/2016 10:38:23 PM EST by BrowardMason]
Interesting. Why the riser? Cheek weld?

I see...DBAL?
Link Posted: 12/7/2016 10:42:40 PM EST
[Last Edit: 12/7/2016 10:44:00 PM EST by RJeff21]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BrowardMason:
Interesting. Why the riser? Cheek weld?

I see...DBAL?
View Quote


Cheek weld/more comfortable "heads up" position for one. It also allows me to use head mounted NODs through the Aimpoint should I want to.

Also, yes, DBAL-A3.
Link Posted: 12/8/2016 12:06:46 AM EST
11.5" 6.8 spc is what I'd recommend, more fps than 300 blk and shoots same weight bullet. The Bison Armory 1:7 twist is also capable of shooting subs, I'll never shoot them with mine but it's very accurate with any ammo that's readily available.

Link Posted: 12/8/2016 12:43:38 AM EST
Mk18 or CQBR?

Which was it?

Whichever one it was, I'd build the other next.
Link Posted: 12/8/2016 1:55:50 AM EST
urx 3.1 and an 11.5" barrel is a great combo.  if your looking for something a bit slimmer maybe take a look at the urx 4.  the geissele rails are nice also , i don't think you can go wrong with any of them

urx 3.1 and 11.5
Link Posted: 12/8/2016 12:00:26 PM EST
[Last Edit: 12/8/2016 12:01:21 PM EST by Gazorpazorp]
Why did you sell the whole upper? You could have replaced the quad rail with

Originally Posted By BrowardMason:
something a little more streamlined.
View Quote


and kept the great upper that shot well for you.
Link Posted: 12/9/2016 12:22:17 AM EST
You would likely not be disappointed with an SLR handguard.

I was having a hard time deciding between that and a Geissele, but the lengths available for SLR rails made it easier.

No regrets.
Link Posted: 12/9/2016 8:10:35 AM EST
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Originally Posted By Gazorpazorp:
Why did you sell the whole upper? You could have replaced the quad rail with



and kept the great upper that shot well for you.
View Quote


because they demand a premium since it was a factory upper.  I can build a new one just as good for half the price or less.
Link Posted: 12/9/2016 11:00:04 AM EST
Why not .300 BLK? I'll tell you that I rarely shoot 5.56 SBRs anymore because suppressed .300 BLK SBRs spitting subs is what I always dreamed the NFA world was like. It excels at being quiet and short which means it's a ton of fun. A barrel change is all that is different from your standard gear and ammo is becoming more widely available/affordable every day.
Link Posted: 12/9/2016 1:10:57 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By 1iviper:
urx 3.1 and an 11.5" barrel is a great combo.  if your looking for something a bit slimmer maybe take a look at the urx 4.  the geissele rails are nice also , i don't think you can go wrong with any of them

urx 3.1 and 11.5
http://img.photobucket.com/albums/v619/1iviper/IMG_2629_zpsq1xy385r.jpg
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That is just about damn perfect.
Link Posted: 12/9/2016 9:56:57 PM EST
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Originally Posted By ChandlerKJ:



That is just about damn perfect.
View Quote

And it's what I've decided on.

I have a URX 3.1 and 11.5 barrel on the way.  My lower is almost the same as well, except it's an LMT with an FDE Ergo Overmolded grip.

Now I just need to decide on a muzzle device. I love the look of the brake, but on a shorty it would be brutal and I don't have a can yet.  I even ordered the tan panel kit.  Thanks for the inspiration 1iviper. 
Link Posted: 12/9/2016 11:26:47 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BrowardMason:

And it's what I've decided on.

I have a URX 3.1 and 11.5 barrel on the way.  My lower is almost the same as well, except it's an LMT with an FDE Ergo Overmolded grip.

Now I just need to decide on a muzzle device. I love the look of the brake, but on a shorty it would be brutal and I don't have a can yet.  I even ordered the tan panel kit.  Thanks for the inspiration 1iviper. 
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BrowardMason:
Originally Posted By ChandlerKJ:



That is just about damn perfect.

And it's what I've decided on.

I have a URX 3.1 and 11.5 barrel on the way.  My lower is almost the same as well, except it's an LMT with an FDE Ergo Overmolded grip.

Now I just need to decide on a muzzle device. I love the look of the brake, but on a shorty it would be brutal and I don't have a can yet.  I even ordered the tan panel kit.  Thanks for the inspiration 1iviper. 
ChandlerKJ  --- thanks man

BrowardMason --- the midlength urx and an 11.5" barrel go together like peanut butter and jelly , it makes a great handling combo.  the brake can be a bit concussive if your not the shooter , anyone to the side of you will not be amused.  an aac blackout or a vortex flash hider does a good job of keeping the flash down on short barrels.

drop a binary type trigger in it and you can clear the firing line in a hurry



Link Posted: 12/10/2016 12:22:02 PM EST
Get a MK18
Link Posted: 12/10/2016 2:01:58 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By 2StampBob:
Get a MK18
View Quote


Lol. But I was thinking the same thing.
Link Posted: 12/10/2016 11:42:10 PM EST
[Last Edit: 12/10/2016 11:44:41 PM EST by BrowardMason]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Hero:


Lol. But I was thinking the same thing.
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Hero:
Originally Posted By 2StampBob:
Get a MK18


Lol. But I was thinking the same thing.

did you read my post? lol. sold my factory DD MK18 Upper. liked it ,  but didn't love it. i know its what all the cool kids want/have, but I'm just not a fan of the cheese grater quad rail anymore.

I also still have a MOD 0 and a 7.5 PDW.

I'm sure the next version of the MK18 will be around shortly
Link Posted: 12/11/2016 4:45:49 AM EST
[Last Edit: 12/11/2016 4:49:07 AM EST by Hero]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BrowardMason:

did you read my post? lol. sold my factory DD MK18 Upper. liked it ,  but didn't love it. i know its what all the cool kids want/have, but I'm just not a fan of the cheese grater quad rail anymore.

I also still have a MOD 0 and a 7.5 PDW.

I'm sure the next version of the MK18 will be around shortly
View Quote


Oh, I know. That's why I thought his post was funny. You said that you just sold your MK18, what should you get? I wondered when people would start to answer MK18. I love the MK18 so I kept thinking of posting that, but it's tech forum and all that.

Seriously though, if you're down on quad rails, I'd do a 10.3 but with one of the SLR rails of your choice. I can't remember the names of all their rails but I love the one that's smooth a 3, 6, and 9 o'clock, and just has a small pic section at 12. I think they have some rails in the 9.5-9.75" range that would be great for getting close to a suppressor. I see you've already made a choice, so all this may be moot anyway.
Link Posted: 12/15/2016 5:34:56 PM EST
[Last Edit: 12/15/2016 5:36:29 PM EST by 2StampBob]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BrowardMason:

did you read my post? lol. sold my factory DD MK18 Upper. liked it ,  but didn't love it. i know its what all the cool kids want/have, but I'm just not a fan of the cheese grater quad rail anymore.

I also still have a MOD 0 and a 7.5 PDW.

I'm sure the next version of the MK18 will be around shortly
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BrowardMason:
Originally Posted By Hero:
Originally Posted By 2StampBob:
Get a MK18


Lol. But I was thinking the same thing.

did you read my post? lol. sold my factory DD MK18 Upper. liked it ,  but didn't love it. i know its what all the cool kids want/have, but I'm just not a fan of the cheese grater quad rail anymore.

I also still have a MOD 0 and a 7.5 PDW.

I'm sure the next version of the MK18 will be around shortly


I still like the MK18 over the rest of my SBR uppers.
Maybe it's because bolting rails to mount rail stuff is stupid or maybe it's because buying new mounts to mount stuff is stupid or maybe it's because skinny rails are like skinny jeans and stupid.<img src=http://www.ar15.com/images/smilies/smiley_smartass.gif border=0 align=middle>

In all seriousness, skinny rails are OK but they do get hot quick.

Edit: Forgot to mention rail covers are stupid too
Link Posted: 12/17/2016 5:16:29 PM EST
I also sold a Block II CQBR upper in favor of something new. I tried out a 12.5 for a while, but came back to a shorter set up.

10.5" with a 9.5" Mk8.

Link Posted: 12/17/2016 7:34:13 PM EST
[Last Edit: 12/17/2016 7:34:48 PM EST by ViktorVaughn]
I'm in a very similar predicament. I think I'm gonna go 10.75 URX 4 and cut down one of my colt barrels to 11.5". Then either use and RC2 or Specwar K.

Still would love to see more "inspiration".

ETA: where the heck are the 'smileys'?!
Link Posted: 12/17/2016 9:44:40 PM EST
11.5" with URX4 is cool. I like mine (KAC upper, homegrown lower)

Link Posted: 12/17/2016 11:43:46 PM EST
[Last Edit: 12/17/2016 11:44:39 PM EST by DontBuryMe]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ViktorVaughn:
I'm in a very similar predicament. I think I'm gonna go 10.75 URX 4 and cut down one of my colt barrels to 11.5". Then either use and RC2 or Specwar K.

Still would love to see more "inspiration".

ETA: where the heck are the 'smileys'?!
View Quote


They're on side and top of the text box on the post editor when viewing the full site. On the mobile optimized site, the symbols on the left side of the text box scroll, and they are down a bit.
Link Posted: 12/18/2016 9:13:01 AM EST
[Last Edit: 12/18/2016 9:15:17 AM EST by ViktorVaughn]
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Originally Posted By DontBuryMe:


They're on side and top of the text box on the post editor when viewing the full site. On the mobile optimized site, the symbols on the left side of the text box scroll, and they are down a bit.
View Quote


Ah! Thank you. Either it's not very intuitive or I'm an idiot. Gonna go with the former.
Link Posted: 12/18/2016 12:57:12 PM EST
I sold mine a few days ago as well. The replacement will be a BCM 300BLK 9". I hunt hogs, and a 9" 300 BLK is far superior to a 10.3" 5.56 for killing stuff.
Link Posted: 12/18/2016 1:03:30 PM EST
I'm building a lightweight 10.03 barrel colt 610 clone. Should be around 5 pounds.
Link Posted: 12/18/2016 4:18:18 PM EST


SLR Ion Keymod
Link Posted: 12/18/2016 6:26:44 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By the1919man:
I sold mine a few days ago as well. The replacement will be a BCM 300BLK 9". I hunt hogs, and a 9" 300 BLK is far superior to a 10.3" 5.56 for killing stuff.
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LOL, NO
Link Posted: 12/19/2016 10:12:21 PM EST
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Originally Posted By 2StampBob:


LOL, NO
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How, exactly, am I incorrect?
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