Gives you a wider selection of available rings. Extra slots expand mounting options. Securely clamps to rifles and handguns; machined for Ruger factory rings.
SPECS:
Steel, polished blue finish. M77® fits M77 rifles, Super Redhawk®. Set of two bases, 1.375" (35.9mm) long and 1.980" (50.3mm) long. 77/22® fits Redhawk® Hunter, Blackhawk® Hunter, 77/22®, 77/44®, 77/50®, Model 96™ (.44 Mag), 10/22® Mag, Mini-14®, Deerfield, and No. 1. Set of two 1.980" long bases.
Catalog page 243