The 9mm Rock Ultra FS is constructed in classic 70 series design and is refined by a carefully managed hand fitting process. it features a 5″ barrel with penetrating impact and unprecedented light recoil. Includes skeletonized hammer and trigger with adjustable over travel stop, low-profile adjustable 2-dot LPA rear sight and high visibility fiber optic front sight. This pistol is fitted with battle ready G10 tactical grips and is finished with a durable parkerized coating. Add 22TCM9R accessory barrel [via gunsmith] that is Built to drive the factory original Rock Island 22TCM9R cartridge at over 2000fps, and the TCM Rock Ultra offers the best in old and new with plenty of upgrades.