Home / Accessory-Silencer Accessories / AAC (Advanced Armament) PISTON ILLUSION 9 13.5X1LH View cart “Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24” has been added to your cart. Sale! AAC (Advanced Armament) PISTON ILLUSION 9 13.5X1LH$8499 Original price was: $8499.$7257Current price is: $7257. Only 2 left in stock AAC (Advanced Armament) PISTON ILLUSION 9 13.5X1LH quantity Add to cart SKU: 64245 Category: Accessory-Silencer Accessories Product ID: 38965 Description Description Fits Illusion 9 Suppressors Related products SilencerCo O-RING BOOSTER PACK $900 Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 Original price was: $10000.$8715Current price is: $8715. Gemtech ADAPTER MM9 FTM 1/2-28 $7500 Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 Original price was: $6900.$6042Current price is: $6042.