UTG Integral QD Offset Mount with 2 Picatinny Slot, 1-Inch, Black by UTG Bi-directional Design to Offer Needed Offset in Diverse Applications; Adjustable Quick Detach Lever Lock System Robust and User Friendly Ergonomic Quick Detach/Lock Lever Fully Adjustable to Fit on Any Picatinny Rail Clever Posi-lock Crossbar Design and Spring Tension Controlled Locking Plate with Steel Insert Guarantees Most Secured Installation Tight Tolerance Control and Repeatable Positive Locking for Optimal Re-zero