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SIG SAUER SUPPRESSOR PISTON M16X1 45ACP FOR SRD SUPPRESSOR
Convert your SRD45 suppressor to a 16x1 Left Hand thread pitch with the SRD-PISTON-M16X1LH. The piston is made of 17-4 heat treated stainless steel, with a matte glass bead finish, and it will fit a variety of hosts. Simply swap the conversion piston with the original piston in your suppressor to match your barrel thread pattern.