This AR-7 Sporter Barrel with Nitride finish comes complete with Barrel Nut, Washer and Front Sight. This 4140 all steel barrel is 16" in length, with a twist of 1:14, ramped and stows in stock! The aluminum barrel nut and the front ramp have a black anodized finish, while the new NITRIDE finish is on the barrel only.
Nitride Finish: This finish coats both the outside and inside of the barrels to give maximum protection against weather and corrosion. This coating helps keep from pitting and also gives you increased accuracy.