Low Profile Tactical Picatinny/Weaver 45 Degree Angle Mount, 1.37" Long with 3 Slots 45 Degree Angle, 1.37" Long with 3 Slots Sufficient Clearance For Both Top and Side Mounting Space System Oriented Design to Build a Flexible and Compact Bridge Mount Systems when Use with Lion Gear's Bridge Mount Robust Compact Steel Locking Plate & Screws - No Bulky Screws and Knobs! Threaded into Steel, not Aluminum Where Troubles Bound to Happen!