TRP with an integral Picatinny accessory rail. Full TRP specification plus rail for weapon-mounted lights and lasers. The most duty-configured production 1911 in the Springfield catalog. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 7 Year introduced: 2002, USA Weight: 41 oz Overall length: 8.6" Status: Active Intended use: Law Enforcement, Tactical, Military