BT10-Mounts directly to any 1913 style Picatinny rail via a low profile two screw clamp assembly. Height Range approximately 4.75 – 9.0". 15 degrees +/- of preloaded Pan. 15 degrees +/- of preloaded Cant. Leg positions are; stowed back, 45 degrees angled back, 90 degrees straight down, 45 degrees forward and stowed forward. Weight 11.0 ounces. Footprint spread 8"– 11" Available in black only. Made in America.