KNIGHTS ARMAMENT SR-15 16 UPPER NO FURTHER A MYSTERY

The finely tuned mid duration gas procedure in the SR-15 E3 Mod2 delivers exactly adequate gas to reliably cycle the system without surplus fuel which will foul internals and burn off the operator’s eyes even though suppressed. This great tuning also contributes to a flatter taking pictures rifle that has a softer recoil impulse than a normal AR.