AERO PRECISION M5E1 Enhanced 20" .308 WIN CMV Complete Upper Receiver w/ 15" Gen 2 M-LOK Handguard

AERO PRECISION M5 20" .308 CMV Complete Upper Receiver w/ ATLAS S-ONE M-Lok 15" Handguard

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

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

BEAR CREEK ARSENAL 300 B/O COMPLETE UPPER 7.5 BRL 1:7 TWIST PISTOL LENGTH GAS MLOK

Sons of Liberty Gun Works SOLGW 14.50" Upper 5.56x45mm M-LOK Rail - Tactical Excellence - M4L89BSCHF14.5

TACFIRE AR-15 Billet Slick Upper Receiver Black

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