Swap between Unsuppressed (U) and Suppressed (S) with a simple twist of a valve. Any and all shooters will notice an additional benefit to venting excess gas at the bolt: reduced carrier speed. This translates to less felt recoil and lower cyclic rates (for full auto applications) as well as reduced wear on the system as a whole. Intended for use in any system that runs a standard 5.56 bolt carrier.
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