The Badger Ordnance Gen ll is machined aluminum mount allows you to mount the Sniper Tools Design Company's Angle Co-Sine Indicator directly to your Picatinny base. Designed specifically for the Marine Corps and the use of their Schmidt Bender 3 - 12 so that it positions the ACI Lower and out of the way of the rheostat knob. Will fit any M1913 MIL STD mount, attaches with 2 soft point set screws so it will not mar your mount. Also fits M16/AR-15 flat top rifles. Weighs less than 1/2 oz. Anodized black.