SHIELD ARMS SA-15 Complete Folding Lower Receivr 223/5.56 Blk

AERO PRECISION M4E1 Multi Caliber Complete AR15 Lower Receiver w/ A2 Grip & M4 Stock - FDE

AERO PRECISION M4E1 Rifle Cmplt Lower Rcv A2 Grip No Stock Black

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

AERO PRECISION M4E1-T 5.56 NATO 11.5" Complete Upper Receiver | Black

FOXTROT MIKE MIKE-102 RIA 5.56 16IN BBL BLACK AK LOWER FWD CHARGING ZHUKOV FOLDING STK ADAPT 1/30RD

Wraithworks Billet Slick Side AR-15 Upper Receiver - Black | No Forward Assist or Brass Deflector

GREAT LAKES FIREARMS Lower Group AR15 5.56mm w/Adjustable Stock Black