Custom fit slide with front cocking serrations to National Match Frame with Light Rail - Master Class Threaded & Extended Barrel; .578-28TPI with Thread Protector - Springfield Custom� Tool Steel components with a 4.5 lb. action job - Springfield Armory 2nd Generation Speed Trigger - Master Class Stainless Steel Barrel Bushing - Springfield Custom� New Suppressor Height Night Sights - Springfield Armory Extended Thumb Safety - Springfield Armory Beavertail Grip Safety - Precision 25LPI Checkering Front Strap and Mainspring Housing - Techwell Magwell with G-10 Grips - Unique Master Class Markings - Specifications - Caliber: .45ACP - Capacity: 7 Rounds - Barrel: 5 Master Class Threaded .578-28TPI - Finish: Black Armory Kote - Grips: G-10 - Sights: Springfield Custom Suppressor Height Night Sights - Frame: National Match Frame w/ Light Rail - Trigger: 2nd generation Speed Trigger