Home / Accessory-Lowers / Bushmaster M4 BUILT LOWER RECEIVER Sale! Bushmaster M4 BUILT LOWER RECEIVER$28295 Original price was: $28295.$27680Current price is: $27680. In stock Bushmaster M4 BUILT LOWER RECEIVER quantity Add to cart SKU: 00-20010-BLK Category: Accessory-Lowers Product ID: 106578 Description Description Related products Sale! Bushmaster BFSIII BUILT LOWER RECEIVER $59395 Original price was: $59395.$56913Current price is: $56913. Sale! Franklin Armory BFSIII M4-BLR LOWER A2 STOCK $47999 Original price was: $47999.$40817Current price is: $40817. Sale! Franklin Armory BFSIII LIBERTAS BLR LOWER $62999 Original price was: $62999.$54434Current price is: $54434.