Home / Accessory-Silencer Accessories / Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH View cart “Rugged Suppressors R3 FLASH HIDER M18X1” has been added to your cart. Sale! Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH$7895 Original price was: $7895.$7188Current price is: $7188. Only 2 left in stock Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH quantity Add to cart SKU: YHM-2060-M Category: Accessory-Silencer Accessories Product ID: 26183 Description Description 9mm Piston For R9 & N2ONot For Sidewinder Suppressors Related products Dead Air Armament SIG MOSQUITO THRD ADAPT 1/2X28 $4500 Sale! Dead Air Armament XENO MOUNT FLASH HIDER 5/8X24 $8900 Original price was: $8900.$8472Current price is: $8472. Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 Original price was: $8900.$7865Current price is: $7865. Gemtech PISTON GM-45 LID MK23 $14800