The Swampfox Independence Mount are 30mm rings on a cantilever one-piece mount with easy and secure mounting to picatinny/weaver-style rails. They are made of one-piece CNC machined 6061 aircraft grade aluminum. These are hooded rings for extra secure stability. They have a centerline aim point to rail height of 1.5 inches. They are matte black and have a scratch resistant finish. The mounting Base length is 2.7 inches. They are tightened using a T10 star ring cap screws with 10 inch-pounds torque. To tighten the picatinny side, it uses T25 star mount bolts with 25 inch-pounds torque. This 30mm ring mount only weighs 6.5 ounces. Designed specifically for rifle scopes using the AR-15 or other modern sporting rifle platforms, the Swampfox Independence Mount are a perfect 30mm cantilever mount for your firearm.