Ade Advanced Optics Rifle Scope Angle Mount Double 3-Slot Rail with Integral QD Lever Lock System New Angle Mount for Installation on Picatinny/Weaver Rails See-thru Thirteen-slot Integral Double Rails for Most Versatile Applications Precision Machined from Aircraft-grade Aluminum Alloy with Anodized Black Matte Finish User Friendly Quick Detach Lever Lock with Full Adjustability to Fit on Any Picatinny Rail Clever Posi-lock Cross Bolt Design and Spring Tension Controlled Locking Plate with Steel Insert Guarantees Most Secured Installation