Receiver Parts

M4e1 Threaded 6.5 Grendel Assembled Upper Receiver W/Atlas R-One - M4e1-T 6.5 Grendel Assem Upper Dmr 20''''bbl Rifle Threaded Blk

M4e1 Upper Receivers Complete Threaded 5.56mm - M4e1 5.56 Assembled Upper Govt 18'''' Bbl Rifle Threaded Black

AERO PRECISION M4E1 300 AAC Blackout 10" Complete Upper Receiver w/ ATLAS S-One Handguard | Black

M4e1 5.56 Assembled Upper Receiver W/M-Lok Atlas S-One Handguard - M4e1 5.56 Assm Uppr 18'''' Rifle 12'''' Atlas S-One Hg Blk

Aero Precision M4E1 Standard Stripped AR-15 Upper Receiver Aluminum Flat Dark Earth

Knights Armament Upper Receiver Kit 5.56 NATO 14.5 Barrel M-LOK

Knights Armament Company AR-15 Upper 5.56 NATO

Knights Armament Upper Receiver Kit 5.56 NATO 11.5 Barrel M-LOK

Ar-15 Super Duty Stripped Lower Receivers - Ar-15 Super Duty Stripped Lower Receiver Black

Ar-15 Receiver Extensions - Ar-15 Pistol Receiver Extension

Epc Lower Parts Kit Minus Fcg/Grip - Epc Lower Parts Kit Minus Grip, Fcg & Trigger Guard Black

Aero Precision M5E1 Complete Upper Flat Dark Earth .308 Win 18 Barrel

Aero Precision Enhanced Mil-Spec AR-15 H1 Carbine Buffer Tube Kit Aluminum Black

AERO PRECISION M5 MOE Lower Parts Kit Minus FCG Black

Aero Precision M4E1 Lower Parts Kit without FCG

AERO PRECISION M4E1 MOE Lower Parts Kit FDE

AERO PRECISION M4E1 MOE Lower Parts Kit

AERO PRECISION AR15 MOE SL Lower Parts Kit Minus FCG FDE

AERO PRECISION AR15 Lower Parts Kit w/ FDE MOE SL Grip

AERO PRECISION AR15 XL Stripped Upper Receiver - Anodized Black

M4e1 Assembled Upper Receiver 18'''' 5.56 Rifle Length - M4e1 5.56mm Assem Uppr Rcvr Govt 18'''' Bbl Rifle-Length Blk

M4e1 Assembled Upper Receiver 5.56 Mid-Length - M4e1 5.56 Nato Assem Uppr Rcvr M4 14.5'''' Bbl Mid-Length Black

AERO PRECISION M4E1-E Complete Upper 10" .300BLK Barrel EM9.3 Ano

M5e1 6.5 Creedmore Assembled Upper Receiver W/Gen 2 Handguard - M5e1 6.5cm Assembled Upper Hvy 18'''' Mid-Length Threaded Blk