Home / Accessory-Kits / Springfield Armory HELLCAT HARDWARE MOUNT KIT You cannot add "SIG SAUER CAL-X KIT P320-M18 9MM COYOTE" to the cart because the product is out of stock. Springfield Armory HELLCAT HARDWARE MOUNT KIT$799 Out of stock SKU: HC6070 Category: Accessory-Kits Product ID: 31048 Description Description Shield RMSC & JPoint Related products Sale! Barrett Firearms MRAD BREECH CONVERSION KIT $47500 Original price was: $47500.$44734Current price is: $44734. Sale! Del-Ton RIFLE KIT M4 5.56MM 16″ $45000 Original price was: $45000.$40673Current price is: $40673. Daniel Defense LOWER PARTS KIT $11800 Sale! Keystone Sporting Arms CRICKETT SPACER KIT BLACK $2499 Original price was: $2499.$2391Current price is: $2391.