Specifications and Features: Caliber: .22LR. Barrel: 17. Weight: 4.25 lbs. Length: 35.5 overall. Sight: Rail for Weaver Style Rings on Receiver. Stock: Ambidextrous Thumbhole Stock. Magazine: One 10 Round. Additional Features of the new MLR22AT include an ambidextrous lightweight thumbhole 10/22 stock made from polypropylene with fiber additives for maximum strength. The new stock design features a comb height designed for comfort with a semi-palm swell on both sides of the pistol grip a molded-to-fit rubber butt plate and the comb height easily accommodates optics. The new rifle will be equipped with the Magnum Lite revolutionary patented graphite bull barrel exclusive to Magnum Research. The patented uni-directional graphite fibers parallel to the bore axis results in a barrel with 6x the stiffness of the equivalent weight of steel. The lighter barrel weights (from 13-16 oz. depending on barrel length) are easier to handle and dissipate heat up to 43% faster than steel. The result is extremely accurate rimfire performance.