12.5" Thoroughbred Armament Co. Gov Profile Barrel 5.56 1/7

Thoroughbred Armament Company Gov profile 12.5" duty grade barrel.
Features:

• 12.5” barrel chambered in 5.56x45 NATO (.223 Rem)
• .750" gas seat
• 1/7 Twist button rifled
• Barrel is dimpled for gas block
• 4150 CrMoV Steel (Chrome Moly Vanadium per MIL-B-11595E)
• Chrome lined chamber and bore
• M4 feed ramps
• Carbine length gas system
• Threaded 1/2x28
• Black Manganese Phosphate finish
• HPT/MPI
• MADE in U.S.A.

What kind of accuracy can you expect out of this barrel?  You will see the same type of accuracy as Colt / FN button rifled gov profile barrels.

What type of longevity will you see with these barrels?  You will see the same type of longevity as Colt / FN button rifled gov profile barrels.

Who made the barrels?  These barrels were made for us by a mil spec contractor who has been making barrels for 70 years.  Due to contractual obligations, this information will not be provided.

What size is the gas port?  The gas port is optimized for use with or without suppresors using quality ammunition.