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Posted: 3/23/2015 11:39:45 PM EDT
Specifically the ALG defense EMR 10".  I have this rail and I want to build my first SBR with it but I don't know which barrel length I want.

With the 10.5" barrel will there be an issue with some muzzle devices?  If I put a brake on there will the hot gases be blown into the handguard, necessitating a longer barrel?
Link Posted: 3/24/2015 12:29:27 AM EDT
[#1]

Link Posted: 3/24/2015 1:13:32 AM EDT
[#2]
10.3 in
Link Posted: 3/24/2015 1:33:44 AM EDT
[#3]
10" Noveske .300 Blk with 10" Midwest Industries Gen 2 SS rail, Yhm Ti 308 QD.  Dunno how this worked so perfectly, but it did!! QD flashider was mounted with no shims either.

Link Posted: 3/24/2015 9:01:41 AM EDT
[#4]
DD MK18 RIS II with 11.5" barrel

Link Posted: 3/24/2015 1:37:58 PM EDT
[#5]
It looks like a 10.5" barrel with a 10" rail shouldn't have any clearance issues.  Thanks guys!
Link Posted: 3/24/2015 1:56:26 PM EDT
[#6]
This is a 10.3 inch barrel with a 9.5 inch Geissele rail.



Barrel threads on an AR are over .6 inches.

So if you had half an inch more rail, and 2/10ths more barrel you won't overlap the muzzle with your flash hider/comp.

You will have to install the comp before the hand guard is on as the wrench flats will likely be somewhat occluded.

Link Posted: 3/24/2015 3:27:49 PM EDT
[#7]
10.75" rail i think? 11.5" bcm

Link Posted: 3/25/2015 4:03:15 PM EDT
[#8]
10in rail 10.5 barrel surefire can


Link Posted: 3/25/2015 4:07:55 PM EDT
[#9]
Center one is an 11.5" with 10" rail.




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