The DPMS Panther LR-308 AP4 is a tactical-configured .308 AR with a 16-inch barrel, M4-style collapsible stock, and flat-top upper. The AP4 designation mirrors the military M4A1 configuration translated to the .308 platform. Features DPMS's standard LR-308 receiver pattern and is one of the most widely sold .308 tactical ARs ever produced. Widely used as a designated marksman rifle platform. Type: Rifle Action: Semi-Automatic Caliber: .308 Winchester Capacity: 20 Year introduced: 2003, USA Weight: 8.5 oz Overall length: 36" Status: Active Intended use: Tactical, Hunting, Precision Shooting