The M&P15 X is a fully accessorized factory AR-15 package, shipping with a 4x32 ACOG scope, vertical foregrip, and sling — a complete ready-to-deploy configuration. Built on the standard M&P15 platform with a 16-inch barrel and carbine-length gas system. The bundled optic and accessories package targeted buyers who wanted a complete rifle system without sourcing individual components separately. Type: Rifle Action: Semi-Automatic Caliber: 5.56 NATO Capacity: 30 Year introduced: 2009, USA Weight: 8.5 oz Overall length: 35" Status: Discontinued Intended use: Sport Shooting, Tactical