Calibers: 9mm. Capacity: 15- or 19-round magazine. Barrel: 3.7” or 4.5”. Features: DA/SA Omega trigger, hammer-fired, polymer frame with three backstraps. F is full-size model with 4.5” barrel and 19+1 capacity. C is compact model with 3.7” barrel and 15+1 capacity. SR is suppressor-ready variant.