Great upgrade part for your AK rifle. Gas block has two port holes for 45 deg and 90 deg barrel and it will work on heavy barrel AK type rifles. Additionally this gas block has integrated adjustable sight which allows operator to cut the barrel size and still have front sight. This modification greatly enhances target acquisition ability. Part finished with black oxide for superior corrosion protection. It will also work on Saiga-M variant rifles.
Gunsmith installation recommended. Do not apply more than 18 pound-force inch of torque on pin screw.