The Alexander Arms Overwatch 6.5 Grendel is a usa-made semi-automatic rifle chambered in 6.5 Grendel, introduced in 2015. Primary use: sport, military, hunting. Type: Rifle Action: Semi-Automatic Caliber: 6.5 Grendel Capacity: 30 Year introduced: 2015, USA Weight: 96 oz Overall length: 36.5" Status: Active Intended use: sport, military, hunting