TruGlo Picatinny Riser Mounts Base Matte Black - TruGlo Picatinny riser mounts to existing picatinny rails. Made from CNC-machined aluminum. Great for any AR-15 flattop, Ideal for mounting scopes or dot optic sights. Features Easy to install without modification; Adapter converts 3/8" mounting bases into Picatinny/ Weaver-style mounts; Integrated adjustable recoil lug; Accommodates all standard scope setups;