This is a Colt National Match Gold Cup chambered in 45 auto, series 70. Model: Gold Cup National Match Series 70 Type: Pistol: Semi-Auto Caliber: 45AP Finish: Blue Action: Single Action Stock: Checkered Wood Sight: FT: Dovetail Post RR: Adjustable Bomar Style Barrel Length: 5 Overall Length: 8.5 Weight: 37 oz Capacity: 8+1 # of Mags: 1 Safety: Standard Grip and Thumb Receiver: Blue Steel Features: Wide Adjustable Aluminum Trigger; Series 70 Firing System