Longer-slide version with has 4" 9mm barrel, bi-tone finish (stainless steel slide with black aluminum frame), textured frontstrap, low profile fixed sights with fiber-optic front, and comes with three 10-shot magazines. Weight is 31 oz. Thin double-diamond cocobolo grips. Note: Add $40 for bobbed (rounded) mainspring housing in bi-tone or FDE Cerakote.