The SR1911 Features a finely detailed, laser-engraved slide that commemorates the 250th Year of American Liberty featuring patriotic themes and "Made in the 250th Year of American Liberty" engraved on the slide; positive barrel lock-up allows for superior accuracy out of the box; traditional design with replaceable grip panels and checkered backstrap; lightweight, aluminum, skeletonized trigger provides a very crisp, no creep, light trigger pull with a quick, positive reset; skeletonized hammer and titanium firing pin for faster lock time; oversized beavertail grip safety provides positive function and reliability; extended thumb safety and slide stop lever for improved, positive manipulation; integral plunger tube for slide stop and thumb safety is not staked and will never come loose. Accepts most standard, aftermarket 1911 parts and accessories.