Spuhr SP-4601C Picatinny Rifle Scope Mount 34mm 20.6 MOA Black SP-4601C. 18 Clearance: 8 mm/.314" (from the bottom of the tube to bridge of the mount body) Length: 120 mm/4.72 (body)/130 mm/5.12" (total) Weight: 227 g/8.0 oz 10-degree wedge included...