Home / Gun Parts / AR15 Parts / AR15 Lowers / BUSHMASTER M4 BUILT LOWER RECEIVER BUSHMASTER M4 BUILT LOWER RECEIVER$224.72 BUSHMASTER M4 BUILT LOWER RECEIVER Out of stock SKU: 2AW|BM-00-20010-BLK Category: AR15 Lowers Tag: Online Only Brand: BushmasterProduct ID: 84274 Related products RADIAN WEAPONS MODEL 1 ADAC-15 LOWER BROWN $514.95 View Details YHM LOWER RECEIVER AR15 BILLET STRIPPED $310.75 View Details RADIAN WEAPONS MODEL 1 BUILDER KIT 17″ GRY $1,444.95 View Details Alex Pro Firearms Stripped Side Folding AR-15 Lower Receiver IFL Black $428.27 View Details