The A3 Patrolman was Bushmaster's duty-configured M4-pattern XM15 with a flat-top upper, six-position stock, and 16-inch M4-profile barrel. Designed for law enforcement patrol use during the post-AWB era, it became one of the most common department-issued patrol rifles of the 2000s. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 1994, United States Weight: 100 oz Overall length: 32.5" Status: Discontinued Intended use: Law Enforcement, Home Defense