This high quality riser from TRUGLO is designed for mounting scopes on a Picatinny rail. It is made to raise your accessory or optic by 1.5" which can be very helpful when mounting a scope on an AR style rifle. Integral recoil lug and reversible design make this mount a great choice for your scope. FeaturesMounts to Picatinny railsCNC-machined constructionReversible one-piece base4 bolts per ring for an extremely strong holdIntegrated adjustable recoil lugCenterline is approximately 1.5" above mounting rail