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! FN FN15 LOWER RECEIVER $46900 Original price was: $46900.$43349Current price is: $43349. Sale! Franklin Armory BFSIII M4-BLR LOWER A2 STOCK # $47999 Original price was: $47999.$37322Current price is: $37322. Sale! Wilson Combat RECEIVER SET AR-15 FORGED $27895 Original price was: $27895.$25620Current price is: $25620. Sale! Wilson Combat RECEIVER SET AR-15 BILLET $50495 Original price was: $50495.$45427Current price is: $45427.