Troy Defense Battle Rifle with 16-inch chrome-lined barrel, Troy TRX Battle Rail, and Battle Sight BUIS. The Battle Rifle package is Troy's flagship complete rifle offering, combining their accessory ecosystem into a factory-configured system favored by law enforcement agencies seeking a complete ready-to-deploy package. Type: Rifle Action: Semi-Automatic Caliber: 5.56 NATO Capacity: 30 Year introduced: 2012, USA Weight: 108 oz Overall length: 33.5" Status: Active Intended use: Tactical, Law Enforcement, Military