The TCM Rock Standard is constructed of 4140 Ordnance steel and refined by a carefully managed hand fitting process. It's built to drive the factory original Rock Island 22 TCM cartridge at over 2,000fps and features a 5" barrel with penetrating impact and unprecedented light recoil. Add a double stack mag well with 17-round capacity and the TCM MS Rock Standard earns respect for delivering a constant high velocity payload. Includes skeletonized hammer, trigger with adjustable over travel stop, and low profile anti-snag front and rear sights. This pistol is fitted with checkered polymer grips and finished with a durable parkerized coating.