AERO PRECISION M4E1 Complete Lower Receiver w/ MOE SL Grip & SL-S

AERO PRECISION M4E1 Threaded Complete Upper 16" 5.56 Barrel w/ 15" M-LOK ATLAS R-ONE Handguard - BLK

GUNTEC AR15 SLABSIDE STRIPPED BILLET UPPER RECEIVER BLACK

White Label Armory WLA-LOW-1015-01 Lower Parts Kit For AR-15 Black

TacFire USA Made AR-15 Lower Parts Kit w/ Enhanced Pistol Grip - Tan

APF AR-15 Stripped Billet Lower Receiver - Matte Black

FRANKLIN ARMORY M4-BLR AR15 Complete Lower Receiver w/ BFSIII Binary Trigger

BLEM Griffin Armament MK2 Ambi AR-15 Lower Receiver, Terra Brown