Caliber: .45 ACP – Recoil System: Dual Captive Recoil Spring w/ Full Length Guide Rod – Sights: Pro-Glo™ Tritium/Luminescent Front & Tactical Rack Serrated Rear (Steel) – Weight (with Empty Magazine): 21.5 oz w/ Flush Mag 22.5 oz w/ Mid-Mag – Height: 4.4 w/ Flush Mag 5 w/ Mid-Mag – Slide: Forged Steel Melonite® Finish – Barrel: 3.3 Hammer Forged Steel Melonite® 1:16 RH Twist – Length 6.5 – Grip Width: .975 – Frame: Black Polymer – Magazines: (1) 5-Round Flush (1) 6-Round Mid-Mag Stainless Steel