Rock Island Armory TM22-20-RT: The Rock Island Armory TM22 is built to the newest standard with the classical attributes needed to pass on for generations. It is Total Metal with 7075 Airplane Grade aluminum from end to end. Compataiblity with AR type grip, commercial buffer tube adapter, top rail, and forend that takes most aftermarket accessoriees, this rifle is built for all ages, all types of scenario. This 20\" barrel 36\" Overall length 22lr rifle was built with no shortcuts, comes with 2 10rd aluminum magazines. Aftermarket factory 15rd and 25rd magazines available.