Description
OSS Pistons
Made from 17-4 Stainless Steel, heat treated then Black Nitride finished to for improved wear and corrosion resistance. Our pistons come with wrench flats that allow for a more secure attachment to your firearm.
Features
-Interchangeable with SilencerCo and Rugged pistons
-Interchangeable between RAD 9 & 45
-Pair with a Piston Spring for reciprocating barrels or Fixed Barrel Spacer for fixed barrels.
-Wrench flats
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