5.56x45mm NATO Barrels

Ar-15 Modern Series Barrels 5.56mm - Ar-15 Modern Series 10.3'''' Carbine Barrel Gov'T

Ballistic Advantage AR-15 13.7 Mid Government Barrel 5.56 NATO 1-7 1/2-28

Ballistic Advantage Classic Series AR-15 Barrel 5.56x45mm NATO 14.5" Hanson Contour 1:7 Twist QPQ

Ballistic Advantage AR-15 Barrel 5.56x45mm NATO 20" Government Contour 1:7 Twist QPQ

Ballistic Advantage 10.5" 5.56 NATO Barrel - Modern Series

Ballistic Advantage Barrel AR-15 Pistol 5.56x45mm NATO M4 Contour 1 in 7" Twist 8" Pistol Length Gas Port Chrome Moly Phosphate Black Factory Blemished

AR-STONER Barrel AR-15 5.56x45mm NATO M4 Contour 1 in 8" Twist 16" Stainless Steel

AR-STONER Barrel AR-15 5.56x45mm NATO M4 Contour 1 in 7" Twist 16" 41v50 Nitride

AR-STONER AR-15 Barrel 5.56x45mm NATO 10.5" M4 Contour 1:7" Twist Phosphate

AR-STONER AR-15 Barrel 5.56x45mm NATO 7.5" M4 Contour 1:7" Twist Phosphate

AR-STONER AR-15 Barrel 5.56x45mm NATO 16" M4 Contour 1:8" Twist Phosphate

AR-STONER AR-15 Barrel 5.56x45mm NATO 16" M4 Contour 1:7" Twist Phosphate

AR-STONER AR-15 Barrel 5.56x45mm NATO 16" M4 Contour 1:8" Twist Stainless

Anderson Manufacturing Barrel AR15 556/223 16\" Carbine Length M4 Contour 1:8 Twist Nitride - B2-K004-AN08

Aero Precision Enhanced PRO Complete Upper, 16.3\" 5.56 CHF Mid-Length Barrel with 15\" Enhanced M-LOK Handguard - Anodized Black - APUG600218M103-1

Aero Precision 13.7\" 5.56 Cold Hammer Forged Barrel with Dimple, Mid-Length - APRH100822C

Aero Precision 16" 5.56 Barrel With Mounted Front Sight, Mid-Length

Aero Precision 16" 5.56 CMV Carbine Barrel w/Pinned FSB

Aero Precision 13.9\" 5.56x45mm CMV Mid-Length AR-15 Barrel - APRH100037C

Aero Precision AR-15 Barrel 5.56x45mm NATO 13.9" Hanson Contour 1:7 Twist

Aero Precision M4E1 Assembled Threaded Upper Receiver, Special Edition: Thunder Ranch FDE Cerakote - APAR700219AC

Aero Precision - M4E1 No Forward Assist Assembled Upper Receiver - 16\" Barrel - .223/5.56 - APAR612218M7

aa no mfr ESS Solutions, M4 Barrel, 556NATO, 14.5", Black Phosphate Finish, 1:7 Twist, Chrome Lined, 1/2x28, 4150 CV Material - M4-145-556-03/7CL-ESS