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Hi, I need to know if this barrel accepts pinned gas blocks or will it only accept a slip on. I know it's .750 diameter, not sure on the rest. Thanks. — 1 Answer

by Kurt, from TX, United States Asked on June 11, 2020

Name FN America AR-15 Hammer Forged 18 Inch Barrel Rifle Length Gas System 5.56mm NATO 36423 (5)
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Answered by Jon4324, guest, from TN, United States, on March 05, 2021

You would have to drill the barrel if you wanted a pinned gas block. Normally the block and barrel are drilled together for perfect alignment. You can also just simple the barrel and use a low profile gas block which I would recommend unless you really like having the fixed sight block.

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