Description 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. RAD Piston Specifications 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 Additional information Weight 2 oz Dimensions 2 × 1 × 1 in MPN 1792 UPC 706433763368
