AR Parts in 5.56x45mm NATO

Spikes Tactical Complete Upper Receiver, 223 Rem/556NATO, 14.5 in Barrel (16 in OAL with Pinned Brake), Mid-length Gas System, Fits AR Rifles, Black, Flat Top Receiver, No Sights, 12 in CRR Quad Rail, Dynacomp Muzzle Brake, No Mags STU5050-CQ2D

Young Manufacturing 1-50-12-002, Inc. M16 Black Nitride Complete Bolt Carrier Group with Standard Bolt, Black Nitride Coated and Heat Treated 1-50-12-002

Fortis Manufacturing CH-556-CLUTCH-RH-RED, Inc. Clutch, Charging Handle, Red, Anodized CH-556-CLUTCH-RH-RED

Fortis Manufacturing CH-556-CLUTCH-RH-GRY, Inc. Clutch, Charging Handle, Gray, Anodized CH-556-CLUTCH-RH-GRY

Fortis Manufacturing CH-556-CLUTCH-RH-FDE, Inc. Clutch, Charging Handle, Flat Dark Earth, Anodized CH-556-CLUTCH-RH-FDE

Badger Ordnance Generation 3 249-60, Charging Handle, Ambi, For 5.56MM, Black Finish 249-60

Diamondback Barrels Medium Profile Barrel, 556NATO, 16 in Barrel, 1:9 Twist, Carbine Length Gas System, Nitride Finish, Black 556C16M50B9

New Frontier Ar15 Barrel 10.5 in 1:7 5.56 Blk BBL-556-10.5

New Frontier Ar15 Barrel 12.5 in 1:7 5.56 Blk BBL-556-12.5

New Frontier Ar15 Barrel 7.5 in 1:7 5.56 Blk BBL-556-7.5

FAB Defense FXMOJOB Mojo Magwell Replaceable Grips for 5.56x45 M16 Lower Receiver Variants Black Fiberglass Reinforced Polymer

FAB Defense FXMOJOPHAB Mojo Magwell w/Spartan Mask Replaceable Grip for 5.56x45 M16 Lower Receiver Variants Black Fiberglass Reinforced Polymer

YANKEE HILL MACHINE CO Turbo Integral Suppressed 5.56 NATO 10.5in Upper Receiver Group (YHM-7125)

Ultradyne USA Apollo S Compensator Muzzle Brake with Timing Nut, AR, 223/556, 1/2"-28 Thread, .975" Outside Diameter, Steel Nitride UD10220

SPIKES TACTICAL 5.56mm 16in Midlength CHF Upper with 12in BAR2 Rail (STU5435-R2S)

SPIKE'S TACTICAL Upper (5.56) 16" CHF Midlength w/ML Handguard & FSP (STU5435-MLS)

RADIAN WEAPONS Model 1 14in Radian Brown Upper and Handguard Set (R0626)

PATRIOT ORDNANCE FACTORY Renegade Plus 5.56 Upper Receiver Assembly, 16.5" Barrel, 9 Position Direct Impingement Dictator, 14.5" Rail, Black Anodized (00907)

NOVESKE Chainsaw 5.56mm 16in Complete Upper (3000523)

Midwest Industries 556 Bolt Carrier Group, C158 Carpenter Steel, Black Nitride Coating MI-BCG-NIT

Luth-AR Palm Handguard, 15", M-LOK, Aluminum, Free Float, Barrel Nut Included, Fits AR-15 Rifles, Black HG-V-15M

LANTAC SmoothCam 223/556 Domed Cam Pin (01-UP-556-CP)

GEISSELE AUTOMATICS Super Duty MOD1 5.56 NATO 14.5in Upper Receiver Group (08-547B)

Fortis Manufacturing, Inc. Clutch Charging Handle, Right Handed, 223 Rem/556NATO, Black Finish CH-556-CLUTCH-RH