Feature A 34mm Mount Assembly Kit Enables You to Add A Red Dot Sight on Top of Your Scope A Including Upper parts of Scope Ring, Short Picatinny Rail, Riser Mount and Hex Key A 2 Red Dot Sight Footprint Adapters (MOJ & MAG) and a Picatinny Mount Available A 4 Pairs of Different Length Screws Can Be Freely Matched to Meet Various Needs A Designed to Attach Red Dot Sights to 34mm Monotube Riflescopes Vertically or at a 45Adeg A Can be Combined with SCFRM-13 to Install Our Frenzy-Plus Enclosed Red Dot Sight Picture Specification A Diameter: 34mm A Profile: 40mm / 1.6", from Bottom to Ring Center A Overall Length: 154mm / 6.1" A Mount Length: 154mm / 6.1" A Gap Length: 70mm / 2.8" A Ring Width: 26mm / 1.0" A Weight: 265g / 9.3oz A Material: 6061-T6 A Finish: Black matte with hard anadizing A Mountinng: 21mm Picatinny A High-durability aluminum alloy in black matte, designed for big recoil calibers A Do not use over 18 inch / pounds of torque on the scope rings&'; screws A Suggest 25 inch / pounds (Can Accept Max 45 Inch / Pounds) torque force for big nuts when installing the mount on the picatinny rail