FOSTECH EAGLE AR-15 RIA 5.56 OD GREEN ECHO SPORT TRIGGER LITE UPPER&LOWER HEAVY M4 BBL

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

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

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

AERO PRECISION M5 Complete Upper 22" 6.5 CM SS Fluted SM15 Ano

BEAR CREEK ARSENAL 5.56 NATO COMPLETE UPPER 10. BRL 1:7 TWIST CARBINE LENGTH GAS MLOK

FOSTECH FLITE ELITE PHANTOM RIA 22LR 17IN BBL TUNGSTEN MACH-2 13IN RAIL ECHO II TRIGGER 1/25RD

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