KNIGHTS ARMAMENT SR-15 16 UPPER NO FURTHER A MYSTERY

The finely tuned mid size gas system of your SR-15 E3 Mod2 provides precisely plenty of gas to reliably cycle the process with no excess gasoline which will foul internals and burn the operator’s eyes even while suppressed. This fantastic tuning also leads to a flatter shooting rifle using a softer recoil impulse than an ordinary AR. The SR-fifte