STI International slides are CNC milled from pre-hardened barstock 4140 carbon steel to ensure slide rail exactness. The breech face is wire EDM cut for maximum precision angle. STI offers three slide lengths: 4.15″ (Commander), 5″(Government), and 6″ (Long Slide). The slides have lowered and flared ejection ports (largest in the industry) for reliable case ejection. STI offers a wide variety of options on our slides that can save time for the final assembly of a high quality pistol. STI slides fit both 1911 and 2011® frames.