Chambered for the popular and economical .22lr cartridge, the SU22 series is designed for beginners, target shooting, plinking or small game hunting and accepts most AR-22 magazines. Models differ mainly in forend and stock. A standalone firearm and not a conversion, the SU22 series is based on its big brothers, the SU16 series of rifles, and shares many of their characteristics. The SU22 series is an excellent choice for that beginner in your family.