VISM GEN II 30mm cantilever scope mount with lightweight upper rings and 45 offset rail. Includes 1" scope inserts.Features:Compact Dual Auto-Locking Quick Release Levers to secure the mount to Weaver/ Picatinny/ MIL STD 1913 type railsScope centerline set to 1.5" above the raila popular height for the AR15 platform of firearmsScope mount features a reversible 45 degree offset Picatinny Rail side mountperfect for those wanting to mount a secondary optic at the 45 offsetThe offset side rail can be mounted onto the left or right side of the scope mount or removed all togetherThe GEN II mount is shorter and lighter overall from the previous modelThe scope ring spacing has been updated to allow more scope fore and aft adjustment for eye relief fine tuningLength: 6.25"Weight: 6.7oz(scope mount only)1.1 oz(off set rail)1.0 oz(1" scope inserts)Specifications:Color: BlackBase/Mount Type: MI- STD 1913Length: 6.25 inHeight: 1.5 inWeight: 6.7 oz