LEF-T 20 Inch Standard Chrome Moly Heavy Barrel with Extension and Pin, 1:9 LH Twist

.223 Wylde 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.