V-22 AICS format magazines allow the use of both 22 Long Rifle and 17HM2 cartridges. Machined from billet aluminum and anodized for a durable finish. These magazines are designed to work with Vudoo rimfire actions and work in Chassis and stocks that accept AI pattern magazines. They are very durable and provide smooth and reliable feeding of rimfire cartridges. Mfg: Vudoo Gun Works