Ar-15 Adjustable Piston System W/0.625'''' Gas Block Left Hand - Ar-15 Adj Piston System W/Solid .625'''' Gas Block Carbine Lh

AR-15 ADJUSTABLE PISTON SYSTEM W/0.625" GAS BLOCK LEFT HAND The Superlative Arms Patented Bleed OffA(R) Mode, gas piston system for the AR-15 platform adjusts the gas flow by bleeding the gas out the front of the block instead of restricting the flow like conventional adjustable blocks. RESULTS: The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas and pressure are bled out of the block allowing the system to run much cleaner and