LEF-T 16 Inch CAR Heavy Chrome Moly Barrel with Extension and Pin, 1:9 LH Twist

5.56 NATO Chamber. Threaded, 1/2-28 thread, WITH Extension and Pin. Barrel diameter .750 at gas block seat.

For use only in RRA LAR-15LH LEF-T platform rifles, not intended for use in any other platform, of any make, model, or configuration.