Home / Accessory-Kits / Del-Ton RIFLE KIT M4 5.56MM 16″ View cart “Barrett Firearms MRAD BREECH CONVERSION KIT” has been added to your cart. 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 Sale! Magview B1 BINOCULAR ADAPTOR $9999 Original price was: $9999.$9350Current price is: $9350. Springfield Armory HELLCAT HARDWARE MOUNT KIT $799 Keystone Sporting Arms CRICKETT CPR SPACER KIT BLACK $1999 Sale! Magview S1 MINI SPOTTING SCOPE ADAPTOR $16999 Original price was: $16999.$14942Current price is: $14942.