Description Hi Standard Sentinel R-10C in .22 caliber with a nine round capacity and a 3″ barrel. Checkered composite grip plates. Matte blued frame. Blued cylinder and barrel. Case colored serrated trigger and hammer. Under barrel checkered cylinder release. Front and rear fixed sights. Must ship to a C&R or FFL holder. Condition: Good/Very Good with light scratches and handling wear. Clean rifled bore. Barrel Length: 3″ Serial: 31392 Manufacturer: Hi Standard Year: 1938 Caliber: .22 Model: Sentinel R-10C Book# X-077