Ruger’s American Rimfire rifle features a patent-pending Power Bedding integral bedding block system which positively locates the receiver and free-floats the barrel for outstanding accuracy; two interchangeable compact length of pull stock modules that provide comb height options for scope or iron sight use; cold hammer-forged barrel; Ruger Marksman Adjustable trigger; tang safety; 10/22-style extended magazine release and a A 3/8″ rimfire scope base is machined into the receiver, which is drilled and tapped for Weaver #12 bases. Includes sling swivel studs, flush-mounted JMX-1 9rd rotary magazine and accepts the BX-15 Magnum magazine.