The Xpert Sporter SR from Winchester Repeating Arms combines accuracy, dependability and style in a lightweight bolt-action package. Chambered in 21 Sharp, the Xpert features a precision Rimfire M.O.A. Trigger, button-rifled barrel with Bentz-style chamber and a satin finish wood stock with traditional checkering. 1/2" x 28 TPI threaded muzzle with knurled thread protector; ambidextrous magazine release using side-mounted rails or release tab; drilled & tapped; adjustable rear sight and blade front sight.