Home / Accessory-Lowers / Bushmaster M4 BUILT LOWER RECEIVER Bushmaster M4 BUILT LOWER RECEIVER$27795 Out of stock SKU: 00-20005-BLK Category: Accessory-Lowers Product ID: 58418 Description Description Related products Sale! Franklin Armory BFSIII ELITE LIBERTAS LOWER $67999 Original price was: $67999.$65160Current price is: $65160. Sale! Wilson Combat RECEIVER SET AR-15 BILLET $50495 Original price was: $50495.$45427Current price is: $45427. Sale! Franklin Armory BFSIII M4-BLR LOWER A2 STOCK $36999 Original price was: $36999.$35996Current price is: $35996.