Home / Accessory-Kits / Del-Ton RIFLE KIT M4 5.56MM 16″ Sale! Del-Ton RIFLE KIT M4 5.56MM 16″$45000 Original price was: $45000.$40673Current price is: $40673. Out of stock SKU: RKT100 Category: Accessory-Kits Product ID: 55534 Description Description M4 Upper Receiver w/HandguardChrome Moly M4 Threaded BarrelBolt Carrier Group Related products Wilson Combat BUFFER SPRING AR15 $595 Wilson Combat SPRING KIT S&W K/L/N FRAMES $1495 Springfield Armory HELLCAT HARDWARE MOUNT KIT $799 Sale! Barrett Firearms MRAD BREECH CONVERSION KIT $47500 Original price was: $47500.$44795Current price is: $44795.