5.56x45mm NATO Rifle Parts

M4e1 5.56mm Assembled Upper Receiver W/Gen-2 Handguard & Fsb - M4e1 5.56 Assm Uppr Rcvr Gov 10.5'''' Bbl Carbine W/7''''hg & Fsb

LMT Defense DEFENDER-L Stripped Lower 5.56 / .300 AAC Blackout

BLEM Bravo Company Complete Lower w/ BCM Gunfighter Stock

Ar-15 16'''' Lo-Drag Bull Upper Receivers - Ar-15 16'''' Lo-Drag Bull Upper Receiver 2pc Hg 1-7

Stag 15 5.56 18in 3gun Elite Upper Receivers - Ar-15 3 Gun Elite Upper Receiver 5.56mm Left Hand

Faxon AR-15 Duty Series Gunner Complete Upper Receiver Assembly 5.56x45mm NATO 11.5" Barrel Suppressor Ready

Faxon AR-15 Duty Series Gunner Upper Receiver Assembly 5.56x45mm NATO 11.5" Barrel Suppressor Ready

Faxon AR-15 Duty Series SOCOM Complete Upper Receiver Assembly 5.56x45mm NATO 10.5" Barrel

Faxon AR-15 Duty Series Gunner Complete Upper Receiver Assembly 5.56x45mm NATO 16" Barrel

VKTR VK-1, 5.56mm, 13.7 w/ P&W HUXWRX Flash Hider Muzzle Device, Sniper Grey, Complete Upper

Geissele Super Duty AR-15 Barreled Upper Receiver 5.56x45mm NATO 16" Heavy Barrel 0.750 Gas Block Stripped Desert Dirt

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm 14.5" Pinned and Welded HBAR Barrel M-LOK Desert Dirt

RUGER AR-556 Elite 5.56 NATO Complete AR15 Lower Receiver - Black w/ Magpul MOE SL Stock

FAB Defense MOJO Improved Mag-Well Mask Crusader Cavalier Black

Ar-15 Combat Grade Barrels - 5.56mm Nato 10.5'''' Combat Grade Barrel

Ar-15 Combat Grade Barrels - Combat 300 Aac Blackout 13.9'''' Drp Profile 5/8x24 1-7 Twist

ANDERSON AR-15 Stripped Lower Multi Cal

Sons of Liberty Gun Works M4-EXO3 5.56mm 14.5" Bbl Mid Gas EXO3 Rail P&W ASRFH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4EXO3-556-145-ASR

Sons of Liberty Gun Works M4-EXO3 5.56mm 14.5" Bbl Mid Gas EXO3 Rail No Muzzle Dev Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4EXO3-556-145-NMD

Sons of Liberty Gun Works SOLGW L89 5.56mm 12.5" No BCG/CH Upper Receiver M4L89UPPER-12.5-556

PRI Mark 12 Mod 0 Gen II AR-15 Complete Upper Receiver 5.56x45mm NATO 18" Barrel 1:7" Twist Black

PPU M-200 5.56x45mm NATO Blank Ammo Box of 20

Mike 15 Gen 2 5.56 Upper Receivers - Gen 2 Complete Upper 9'''' Pistol Length Gas W/Blast Diverter

Mike 15 Gen 2 5.56 Upper Receivers - Gen 2 Complete Upper 13.9'''' Intermediate Gas W/A2 Flash Hider