Home / Accessory-Stocks / SIG SAUER MPX STOCK ADAPTER ASSEMBLY View cart “Heckler and Koch (HK USA) VP9 MATCH OR LONG SLIDE” has been added to your cart. Sale! SIG SAUER MPX STOCK ADAPTER ASSEMBLY$12999 Original price was: $12999.$12618Current price is: $12618. Out of stock SKU: ADAPTER-X-FOLD Category: Accessory-Stocks Product ID: 59100 Description Description Related products Sale! Heckler and Koch (HK USA) VP9SK/VP9SK-B OR SLIDE $40500 Original price was: $40500.$35320Current price is: $35320. Sale! Heckler and Koch (HK USA) VP9 MATCH OR LONG SLIDE $54900 Original price was: $54900.$47490Current price is: $47490. Wilson Combat SUPERSTOC CARB BUTTSTOCK BLK $5995 Sale! Heckler and Koch (HK USA) VP9 OR SLIDE WITH TALL SIGHTS $40500 Original price was: $40500.$35320Current price is: $35320.