Savage Arms continues its track record of innovation with the A-Series, a high-performance semi-automatic rimfire system specifically designed for magnum cartridges. Its delayed blow-back action provides safe, reliable operation with standard magnum loads. The hard chrome bolt, case-hardened receiver, rotary magazine and button-rifled barrel boost performance even further, while the user-adjustable AccuTrigger provides a crisp, light pull for the best possible accuracy. This model has a 21 barrel and a detachable rotary magazine.