The Troy Industries low profile gas block replaces the standard AR-15 front sight. The slim design allows users to install rail systems and free float tubes that extend past the front sight/ gas block assembly location. The gas block is 4140 steel with a black oxide finish. It is secured with two set screws located on the bottom of the block.
Fits .936" diameter barrels
4140 steel with black oxide finish
Secured with 2 set screws
Will not cover front taper pin hole on a barrel that has a standard mil-spec sight installed
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