The 100% American-made Ruger American Rimfire bolt-action rifle builds on the enormous success of the centerfire Ruger American Rifle. With many of the standard Ruger American Rifle features, this new line also combines several design innovations from the popular 10/22 rimfire rifle. This combination, along with the rifle's adaptability, appeals to bolt-action enthusiasts - whether young or old, novice or experienced. Each Ruger American Rimfire rifle includes two, interchangeable stock modules that provide comb height options for scope or iron sight use. Standard models come with long length of pull modules, while compact models come with short length of pull modules. By simply removing the rear sling swivel stud, stock modules can be changed in seconds. All four stock modules are completely interchangeable across all models.