Sportsmatch 2 Piece 30mm Fully Adjustable Weaver/Picatinny Mount Item Description Sportsmatch ATP72 30mm Tube 2 Piece High Adjustable Mounts Weaver / Picatinny Please ensure these mounts will suit your application by carefully checking that the tube size and base type is correct before purchasing. 2 PIECE HEIGHT ADJUSTABLE – Adjustable for elevation. Adjustable upto 50 MOA. High tensile construction with a totally solid mechanism utilizing fasteners with a special anti vibration coating. 2 Piece Mounts. Base Fitting: Weaver (Picatinny – RIS) style rails 20mm wide. Tube Size: To fit 30mm diameter body tube scopes. Front Lens Size: Up to 56mm – This figure describes the maximum size of the objective (front) lens the mount is designed for when the dovetails are flush with the barrel. Please bear in mind scopes with front PX adjustment will often need higher mounts. Bolt Type: Cap = Allen Head, Base = Thumb Nut. Clamp Design: Double Clamp (four bolts on each cap). Dimension A: 21 – 22.5mm Dimension B: 21mm Sportsmatch offer huge selection of quality mounts – All Made In England!