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Page AR-15 » Build It Yourself
AR Sponsor: bravocompany
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Posted: 9/10/2010 10:13:17 PM EDT
Anyone use a Larue .750 gas block with a BCM SS410 18" barrel? When I slide it over the barrel it seems really loose. Does it tighten up right when installed? Hope this isn't a stupid question. This is my first complete build and I want it to be right. Thanks guys!
Link Posted: 9/11/2010 3:52:23 AM EDT
[#1]
Quoted:
Anyone use a Larue .750 gas block with a BCM SS410 18" barrel? When I slide it over the barrel it seems really loose. Does it tighten up right when installed? Hope this isn't a stupid question. This is my first complete build and I want it to be right. Thanks guys!


At the point where the port on the GB lines up with the port on the barrel, you should be able to turn the GB freely with your fingers but it's should not fall of the barrel under it's own weight.

At this point.


Hope this helps.

J

Link Posted: 9/11/2010 6:18:41 AM EDT
[#2]
Thanks for the info!
Link Posted: 9/11/2010 12:59:17 PM EDT
[#3]
Anyone else have any info?
Link Posted: 9/11/2010 2:04:32 PM EDT
[#4]
is the GB designed for the barrel profile?
Link Posted: 9/11/2010 2:20:02 PM EDT
[#5]
Quoted:
is the GB designed for the barrel profile?


Yep. According to BCM's website the barrel requires a .750 gas block.
Link Posted: 9/11/2010 2:48:57 PM EDT
[#6]
Quoted:
Quoted:
is the GB designed for the barrel profile?


Yep. According to BCM's website the barrel requires a .750 gas block.


Just screw that GB down, and you'll be fine. Some GB give more "slack" at the port, luckily the YHM unit happens to be just right for thet barrel.

J
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