OSS Rad Piston .578X28

OSS RAD PISTON .578X28

Made from 17-4 Stainless Steel and is heat treated then black nitride finished 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