Olympic Arms PCR-4 in flat-top configuration — the AWB-compliant version of their standard A3 carbine with a 16-inch barrel, flat-top upper, and non-collapsible stock. No bayonet lug, no flash hider. Designed for the post-ban tactical market. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 1994, United States Weight: 96 oz Overall length: 32.5" Status: Discontinued Intended use: Recreational Shooting, Home Defense