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.750 Low-Profile Gas Block made for rail systems that need to go over the gas block. Fits all M4 carbines and M16A2, A3 & A4 rifles. Machined from hardened steel with a black oxide finish. Made in the U.S.A.
Troy™ .875 low profile gas block is made specifically for heavy barrel rifles with a .875 barrel diameter.
Troy .936 low profile gas block is made specifically for bull barrel rifles that have a greater diameter than the standard m4/m16 .750 barrels. The Troy .936 low profile gas block works on both .223, 5.56 and .308 bull barrels (As well as other calibers). Finally there is an option for users who desire to replace their default gas blocks, or fixed front sight gas blocks to utilize a free float rail system that installs over the gas block.
Low-profile gas block that is made to cover area under fixed sight gas block and hides taper pin holes.
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