The MK 13 Mod 5 is a US Navy SEAL sniper rifle built on an Accuracy International AXMC chassis chambered in .300 Winchester Magnum. The 27-inch barrel delivers consistent performance to 1,500 meters. The AI AXMC chassis provides folding stock and adjustable components. It represents an intermediate step in MK 13 evolution between the earlier McMillan-stocked variants and the current Mod 7. Type: Rifle Action: Bolt-Action Caliber: .300 Winchester Magnum Capacity: 5 Year introduced: 2012, USA Weight: 15.1 oz Overall length: 49" Status: Discontinued Military use: Yes Intended use: sniper, military, special operations