5.56x45mm NATO Barrels

20" 5.56 NATO 1:9 Twist Phosphate Rifle Lightweight Barrel

16" 5.56 NATO 1:9 Twist Phosphate Carbine Heavy Barrel

16" 5.56 NATO 1:9 Twist Phosphate Carbine M4 Barrel

14.5" 5.56 NATO 1:9 Twist Phosphate + Chrome-Lined Carbine M4 Barrel

20" 5.56 NATO 4150 CMV Black Nitride CHF Govt 1:8 Rifle Length Barrel

20" 5.56 Government Contour 1:9 Rifle Length Barrel w/ FSB - Phosphate

16 5.56 NATO Pencil Midlength Lightweight M-LOK Upper Assembly

Ballistic Advantage 14.5" 5.56 M4 Profile Carbine AR-15 Barrel w/ FSB Circular Cap and Delta Ring Assembly 1:7 Twist

20" Black Nitride 4150 Steel Heavy Barrel 5.56 NATO Rifle Length Gas Syst 1:7 Twist

Spikes Tactical Barrel CHF Alloy 1:12 Twist - 18"

5" 5.56 NATO 1:5 Micro Black Nitride Barrel

Daniel Defense 16\" 5.56 NATO Mid-Length Lightweight Barrel CHF

Daniel Defense 16\" 5.56 NATO Govt Profile Barrel 0707709173018 Black Phosphate AR-15 Chrome Moly Vanadium

Aero Precision M4E1 Enhanced 16\" 5.56 Mid-Length No Forward Assist Complete Upper Receiver w/ 15\" M-LOK Handguard - Cerakote FDE - APAR612294M7

Lightweight Ar-15 Starter Kits - Lightweight Ar15 Starter Kit 10.5'''' Handguard 12.5'''' Bbl W/Bcg

Lightweight Ar-15 Starter Kits - Lightweight Ar15 Starter Kit 10.5'''' Handguard 11.5'''' Bbl W/Bcg

Lightweight Ar-15 Starter Kits - Lightweight Ar15 Starter Kit 14'''' Handguard 14.7'''' Bbl W/Bcg

Blemmed Ar-15 Lightweight Carbine Barrel - Ar-15 14.5'''' A1 Barrel 1/2''''-28 Chrome Moly Nitride Blem

M89 11.5'''' Drive Lock Handguard W/ 13.7'''' 5.56 Barrel Bundle - M89 11.5'''' Drive Lock Handguard W/13.7'''' 5.56 Barrel Set

Brn-4 Piston Upper Receiver Kits - Brn-4 16'''' Upper Receiver Kit W/ Medium Profile Barrel

Ar-15 Lightweight Carbine Barrels - Ar-15 16'''' A1 Barrel 1/2-28'''' Chrome Moly Nitride

Ar-15 Lightweight Carbine Barrels - Ar-15 14.7'''' A1 Barrel 1/2-28'''' Chrome Moly Nitride

Ar-15 Lightweight Carbine Barrels - Ar-15 14.5'''' A1 Barrel 1/2-28'''' Chrome Moly Nitride

Ar-15 Lightweight Carbine Barrels - Ar-15 13.9'''' A1 Barrel 1/2-28'''' Chrome Moly Nitride