BILLION DUO 30mm / 1" 25.4mm Scope Rings, 2 Pieces High Profile Scope Mounts + 2 Pieces Low Profile Scope Rings for 20mm Rail - Pack of 4 (2PCS Hight Mount+2PCS Medium Mount)

• 【Perfect for All 20mm Picatinny Rails】These scope rings fit for all 21mm standard picatinny rails, perfect for mounting most scopes which are In 30mm or 25.4mm scope tube.
• 【Premium Aircraft Aluminum, Solid & Durable】Precision machining of aircraft grade 6061 aluminum alloy + high strength aluminum in black matte anodizing finish. Sturdy & lightweight construction, build no wobble, offer durable safe performance in the field.
• 【Hollowed-Out Design & Built-In Tape Protection】Design In See-Through Style, Provide Potential Visibility For Open Sights, Meanwhile Hollowed-Out Configuration Helps To Release Heavy Duty When Clamping Your Scope. Built-In Tape Inside Per Rings To Prevent From Marring The Scope, Also Prevent Sliding and Holding Postion Accurately.
• 【Rail Clamp Screw Design & Easy To Install】With 1 rail clamp screw and 2 scope clamp screws per side, ensure mount any 30MM or 25.4MM 1"scope firmly, just twist on/off the scope clamp screw nut via allen wrench and mount the base on 20mm rail, simple and quick to remove or install.
• 【Package】2 Pieces High Profile Scope Mounts + 2 Pieces Low Profile Scope Rings

Perfect for All 20mm Picatinny/ Weaver Rails These scope rings fit for all 21mm standard picatinny rails, perfect for mounting most scopes which are In 30mm or 2 4mm scope tube. Premium Aircraft Aluminum, Solid & Durable Precision machining of aircraft grade 6061 aluminum alloy + high strength aluminum in black matte anodizing finish. Sturdy & lightweight construction, build no wobble, offer durable safe performance in the field. HollowedOut Design & BuiltIn Tape Protection Design In SeeThrough Style, Provide Potential Visibility For Open Sights, Meanwhile HollowedOut Configuration Helps To Release Heavy Duty When Clamping Your Scope. BuiltIn Tape Inside Per Rings To Prevent From Marring The Scope, Also Prevent Sliding and Holding Postion Accurately. Rail Clamp Screw Design & Easy To Install With 1 rail clamp screw and 2 scope clamp screws per side, ensure mount any 30MM or 2 4MM 1 scope firmly, just twist on/off the scope clamp screw nut via allen wrench and mount the base on 20mm rail, simple and quick to remove or install. Package 2 Pieces High Profile Scope Mounts + 2 Pieces Low Profile Scope Rings