What are 0 MOA and 20 MOA?
0 MOA: A 0 MOA mount does not have any built-in elevation. When a scope is mounted on a 0 MOA mount, the optical axis of the scope remains parallel to the barrel of the firearm. This means that the scope's reticle is aligned with the bore axis, and no additional upward or downward adjustment is introduced.
20 MOA: A 20 MOA mount, on the other hand, has a built-in upward cant or angle of 20 MOA. When a scope is mounted on a 20 MOA mount, the optical axis of the scope is angled slightly upward relative to the bore axis. This introduces additional elevation in the scope's point of impact. The purpose of a 20 MOA mount is to provide increased elevation adjustment capability for long-range shooting or compensating for bullet drop at extended distances.
Ring Diameter: 30mm
Overall Length: 144m / 5.7"
Overall Height: 48mm / 1.9"
Mount Length: 144mm / 5.7"
Ring Width: 45mm / 1.8"
Central Height: 28mm / 1.1", bottom to center
Ring Length: 26mm / 1.0"
Gap Length: 63mm / 2.5"
Material: 6061-T6 aluminum alloy
Weight: 127g / 4.5oz
Mount: 11mm dovetail
Finish: Black matte
Screws per ring: 6
High-durability aluminum alloy in black matte
Do not use over 18 inch / pounds of torque on the scope rings' screws
Suggest 18 inch / pounds torque force for big nuts when installing the mount on the dovetail rail
Adjustable anti-retreat pin designed for hard and rigorous use
With hex key and retail package, hex key can be used to fasten the clamp nuts
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