The Simmons .22 Mag Series Rimfire Riflescope is made by the same people that make America's most popular rimfire scope, but that's where the resemblance ends. The QTA (Quick Target Acquisition) eyepiece provides a minimum eye relief of 3.5 inches no matter what the magnification level. The HydroShield multi-coated lens is both waterproof and fogproof. Simmons includes a duplex-style reticle that is easy to see and use. This rimfire scope includes Simmons' patented TrueZero adjustment system, which employs direct, steel-on-steel pressure in a ball-bearing and spring system, to hold zero. The SureGrip adjustment knobs are low-profile, yet easy to adjust even with gloved hands. Each scope comes complete with a set of two rimfire rings that are easy to mount.