Specifications and Features: – Calibers: .500 S&W Magnum – Barrel: 7.5 – Twist Rate: 15 – Groove Diameter: 0.500 – Overall Length: 15 – Weight: 4.5 lbs. – Height: 6 – Slide Width: 1.75 – Trigger Pull: 3-4 lbs. – Finish: Brushed Stainless Steel Construction – Sights: Factory Black Fixed Front / Rear Adjustable – Shots: 5