Sig Sauer SRD Piston 45 ACP M16x1 LH, 17-4 Stainless Steel - SRDPISTONM16X1LH

This SRD piston converts your SRD45 suppressor to accept M16x1 left-hand threaded barrels. Made from 17-4 heat-treated stainless steel with a matte glass bead finish, the piston simply swaps with the original unit in your suppressor to match your barrel thread pattern. Compatible with a variety of host firearms.