Rock Island TAC Ultra FS HC 1911 Double Stack Pistol in 10mm. 4.2 in. Threaded barrel. Picatinny rail. Black Parkerized 16 rd. Black and gray G10 grips. Skeletonized hammer and trigger. Adjustable overtravel stop. Ambidextrous Safety. Full length guide rod. Dovetail adjustable rear sights. Fiber optic front sights.