UTG Police Grade Quick Detach Lever Padlock Universal Picatinny Mount (UPM)-- 2PCs 30mm Rings, Entirely Adjustable for Many Protected Padlock, 22mm Wide, 22mm Seat Height, High Account, See-Thru, Fits Scopes up to 74mm Purpose Diameter, 4 Best Screws
4-screw High Profile "Tiger" Ring, Precision Machined From Aircraft-grade Aluminum Alloy with Anodized Black Matte Finish
Robust and User Friendly Ergonomic Quick Detach/Lock Lever Fully Adjustable to Fit on Any Picatinny Rail
High Quality Synthetic Protective Tape Applied on Rings Internal Surface
Tight Tolerance Control and Repeatable Positive Locking for Optimal Re-zero Performance
Extensively Field Tested under Extreme Operations and Well Received by Field Experts and Law Enforcement Personnel
Kindly refer the user manual attached below for troubleshooting steps and instructions.