Home / Accessory-Silencer Accessories / Gemtech PISTON GM-45 LID 9/16-24 View cart “Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24” has been added to your cart. Gemtech PISTON GM-45 LID 9/16-24$14800 Out of stock SKU: 12187 Category: Accessory-Silencer Accessories Product ID: 31204 Description Description GM-45/Blackside Piston Related products Gemtech ADAPTER S&W M&P22C/22LR $6200 Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 $8606 Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 $8715 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH $7495 $7135