AR15 Complete Uppers for sale - Firearms Unknown

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Complete Uppers

70 Products available

Sig Sauer MCX Spear 5.56 Nato 16" Upper Conversion Kit

Custom 5.56 Upper 10.5" (Y)

FU Boom Stick

FU Custom Upper 16" ALG Carbine 5.56 W/ Birdcage

FU Custom 16" AR-15 Mid-length Upper M-LOK w/A-2 Birdcage FDE

FU Custom Upper 16" 5.56 1:7 4150v 17" Blitzkrieg Super Slim W/Linear Comp

FU Custom Upper 16" 5.56 Carbine Gas 1:7 4150 15" Skinny KMR w/MK I Effin' A Black Nitride BCG

FU Custom Upper 16" 5.56 4150 1:7 Troy 9.2" W/Birdcage NiB BCG

FU Custom Upper 16" 5.56 Carbine Gas 1:7 4150 11.5" Skinny KMR w/Bird Cage NiB BCG

Custom AR-15 16" Midlength SS Fluted Barrel Upper

FU Custom Upper 16" 5.56 1:7 4150 Carbine Gas 15" Luth-AR M-Lok w/ YHM Phantom Comp NiB BCG

FU Custom Upper 16" 5.56 Carbine 4150v 1:7 9" Midwest Industries Quad w/Eliminator NiB BCG

FU Custom Upper 16" 5.56 1:7 4150 Carbine Gas 15" Luth-AR M-Lok w/ House Comp NiB BCG

FU Custom Upper 16" 5.56 4150 1:7 Carbine Gas 11" Troy Alpha W/Procomp NiB BCG

FU Custom Upper 16" 5.56 1:7 4150 Carbine Gas 15" Luth-AR Keymod w/ YHM Phantom Comp NiB BCG

FU Custom Upper 16" 5.56 4150 1:7 Magpul Rail Gas w/Birdcage

FU Custom Upper 16" .300 Blackout 1:7 4150v Pistol Gas 11" Slim KMR Hand Guard w/ Octocomp

FU Complete 300 BO 8" Assembled Upper

FU Complete 300BO 10.5" Assembled Upper

FU Custom Upper 16" 300blk 1:7 4150v 15" Skinny KMR Pistol Gas w/Effin A

FU Custom Upper 16" .308 1:10 416r Dimpled 15" Krait w/Effin' A Dual Ejector

FU Custom Upper 16" .308 416r 1:10 Fluted 15" FDE Krait w/Octocomp Single Ejector

FU Custom Upper 16" .308 1:10 416r Dimpled 17" FDE Krait w/Flash Can Dual Ejector

NC Custom 10.5" .308 1:10 CAR ODG Skeleton M-Lok Upper w/ Flash Can

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