Home / Accessory-Stocks / SIG SAUER MCX STOCK ADAPTER KIT View cart “Heckler and Koch (HK USA) FOLDING STOCK SP5K BLACK” has been added to your cart. Sale! SIG SAUER MCX STOCK ADAPTER KIT$17999 Original price was: $17999.$17017Current price is: $17017. In stock SIG SAUER MCX STOCK ADAPTER KIT quantity Add to cart SKU: 2401191-R Category: Accessory-Stocks Product ID: 29526 Description Description Related products Sale! Heckler and Koch (HK USA) 3-POSITION STOCK SP5 BLACK $62300 Original price was: $62300.$53753Current price is: $53753. Sale! SIG SAUER MCX/MPX FOLD/TELE STOCK BLACK $24999 Original price was: $24999.$23223Current price is: $23223. Sale! SIG SAUER MPX STOCK ADAPTER ASSEMBLY $12999 Original price was: $12999.$11932Current price is: $11932. Sale! Heckler and Koch (HK USA) VP9 OR LONG SLIDE TALL SIGHTS $43399 Original price was: $43399.$37685Current price is: $37685.