Monstrum Picatinny Rail Mount for Ruger American Rifles | Rimfire

Picatinny rail mount built specifically for Rimfire Ruger American rifle platforms Compatible with Short Action Ruger American models only including: 22 LR | 22 WMR | 17 HMR Scope mount installs directly to receiver via the factory mounting holes and included #6 set screws with no additional hardware required Not compatible with short action or with long action rounds All Monstrum scope mounts and accessories come with a lifetime guarantee