LaRue Tactical 20 MOA PSR Scope Mount QD 30mm Black. The height is set for 1.535. The LT112s ring spacing of 2.9 allows the mounting of the US Optics T-PAL scopes. The LT112 comes complete with spare mounting screws with wrench QD adjustment wrench and instructions. Specifications for LaRue Tactical 20 MOA PSR Scope Mount QD: Manufacturer: LaRue Tactical Color: Black Package Contents: LaRue Tactical 20 MOA PSR Scope Mount QD LaRue Tactical LT112-30: 20 MOA PSR Scope Mount QD 30mm Black