The 4x 20mm Rimfire Rifle Scope from Barska is designed specifically for small bore rimfire rifles. With fully coated optics and parallax-free at 50 yards for shorter rimfire ranges the Rimfire rifle scope offers a 30/30 reticle. It has 1/4 MOA coin adjusted windage and elevation turrets. Black matte finish and standard 3/8" rings complete this small game or varmint-type hunting, competitive and recreational target shooting rifle scope. It's backed by Barska's Limited Lifetime Warranty.Features4x Magnification20mm Objective Lens19mm (.75") Tube30/30 ReticleFully Coated Optics1/4 MOA AdjustmentsStandard 3/8" Dovetail Rings IncludedWindage & Elevation Turret