Features: Includes Removable Low Profile Picatinny Mounting Base Mounting Base Interface Uses the Common RMRA(R) Footprint Optic Height Co-witnesses with Most Suppressor Height Iron Sights Tertiary Aiming Point Laser Engraved on Rear Face of Optic Hood Protective Optic Cover Included Compatible with Most Optics Ready Pistol Systems CAUTION: Only use the included #6-32 or #4-40 screws for optic installation. NOTE: Leapers recommends to tighten the #6-32 or #4-40 screws with torque value of about 12 inch-lb and the side plate screw with torque value of about 35 inch-lb.