Spikes Tactical ST-15 Law Enforcement package with 16-inch chrome-lined barrel, enhanced trigger, and LE-standard furniture. The ST-15 LE is supplied to law enforcement agencies as a duty rifle, meeting or exceeding mil-spec standards with additional QC testing on each unit. Type: Rifle Action: Semi-Automatic Caliber: 5.56 NATO Capacity: 30 Year introduced: 2010, USA Weight: 100 oz Overall length: 32.5" Status: Active Intended use: Law Enforcement, Tactical