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Site News Could You Have Stopped This? Vegas Shooting Analysis with Attorneys on Retainer
4/20/2011 10:04:13 AM EDT
i have a RRA entry tactical 16in with the M4 profile barrel and i'm wanting to switch out the factory FSB for a railed gas block, how do i know how big my bbl is around?

i was looking at this one, will it work?

http://www.del-ton.com/YHM_Gas_Block_p/bp1066.htm
4/20/2011 10:08:56 AM EDT
[#1]
The standard M4 profile is .750 at the gas block, so yes that one will work.
4/20/2011 10:09:53 AM EDT
[#2]
ok thanks for the help!
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