Caliber: .45 ACP Features: All Tactical pistols feature Meprolight Tritium 3-dot night sights, ambidextrous safety and premium aluminum trigger. Tactical pistols have 30 lines-per-inch checkering or the front strap and under the trigger guard with extended magazine well for enhanced grip and control. Specifications: Height (inches) 90° to barrel: 5.50 Weight (ounces) with empty magazine: 31 Length (inches): 8.7 Magazine capacity: 7 Magazine well Ambidextrous thumb safety Recoil spring (pounds): 16.0 Full length guide rod Frame: Material: Aluminum Finish: Matte gray KimPro II™ frame finish Width (inches): 1.28 Frontstrap checkering Checkering under trigger guard Slide: Material: Steel Finish: Matte black Front serrations Barrel: Length (inches): 5 Steel, match grade Stainless steel match grade bushing Twist rate (left hand): 16 Sights: Meprolight Tritium 3-dot night sight, fixed Radius (inches): 6.8 Grips: Laminated Double diamond Trigger: Premium Aluminum Match Grade Factory setting (approx. pounds): 4.0 - 5.0