Spuhr Interface Rifle Scope Mount 30mm. The SCP-3001D is designed for use on Picatinny rails and features two interface rings. The SCP-series of mounts can also be rotated for left or right handed shooters and feature two separate side clamps. Specifications for Spuhr Picatinny Interface Mount 0 MOA Dia 30mm: Manufacturer: Spuhr Gun Rail: Picatinny Color: Black Tube Diameter: 30 mm Cant: 0 MOA Length: 108 mm Diameter: 30 mm Package Contents: Spuhr Picatinny Interface Mount 0 MOA Dia 30mm 10-Degree Wedge Spuhr SCP-3001D: Interface Rifle Scope Mount 30mm