Features: Provides a lower 1/3 co-witness sight picture with Aimpoint micro red dot sights Easy installation, with no permanent modification to the firearm Internal profile made to same profile as the standard AK gas tube Constructed from 6061 aluminum and 4140 steel, with mil-spec top rail Rock solid mounting with Midwest Industries patent pending mounting feature 100% Made in the U.S.A. Weight 5 oz MI Lifetime Warranty