Home / Gun Parts / AR15 Parts / AR15 Lowers / BUSHMASTER M4 BUILT LOWER RECEIVER BUSHMASTER M4 BUILT LOWER RECEIVER$253.82 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 Shield Arms SA-15 Complete Folding Lower Receiver w/Rifle Stock – Black $595.70 View Details Wraithworks WARP-15 Polymer Complete AR15 Lower Receiver – Black | Mil-Spec Parts Kit | Integral Buttstock & Textured Pistol Grip | Trap Door Buttplate $143.18 View Details RADIAN WEAPONS MODEL 1 ADAC-15 LOWER BROWN $514.95 View Details RADIAN WEAPONS MODEL 1 BUILDER KIT 17″ GRY $1,444.95 View Details