13.7″ Combat Barrel Mid Gas 5.56 1:7 Twist w/FSB

13.7″ MID GAS Combat Grade Barrel

1:7″ Twist
5.56 NATO
Government Profile
4150 CrMoV
QPQ Finish
1/2″-28 Threaded Muzzle
High Pressure Tested
Magnetic Particle Inspected
“F” Marked Front Sight Base

Includes USGI barrel nut, Delta Ring Assembly, and round handguard cap