Only fits Mausingfield actions with keyed rail interface.
American Rifle Company bolt actions include one rail.
Additional rails may be used to change the scope mounting inclination.
Extremely strong and light-weight, made from 7075 aluminum alloy with a black hard-coat anodized finish.
Proudly engineered and manufactured in the USA.
Only fits Mausingfield actions with keyed rail interface. Serial Numbers of less than 999 accept keyed rails.
To choose the rail angle that will make available most of the elevation adjustment within the scope, you need to determine how much elevation adjustment the scope has, divide that number by two, and then subtract either 15 MOA or 4.4 milliradians. 15 MOA (or 4.4 mils) is subtracted because approximately 6 MOA (1.7 mils) must be allocated to obtaining a 100 yard (or 100 m) zero, assuming the scope is mounted approximately 2” (50mm) above the bore. In addition, approximately 9 MOA (2.6 mils) must be allocated for build tolerances of the rifle, the scope mount, and the scope. This is an approximation, but it is more than adequate for choosing the rail angle. In general, 20 MOA (5.8 mils) is appropriate for scopes having 30mm tube diameters, and 30 MOA (8.7 mils) is appropriate for scopes having 34mm tubes.