The M107A1 with 29-inch barrel is the standard infantry configuration replacing the original M107 in US service. The longer barrel maximizes muzzle velocity for maximum effective range against materiel targets. The titanium barrel key and lightweight components bring total weight down significantly compared to the M82A1 despite maintaining identical external dimensions. Type: Rifle Action: Semi-Automatic Caliber: .50 BMG Capacity: 10 Year introduced: 2013, USA Weight: 256 oz Overall length: 57" Status: Active Military use: Yes Intended use: Military, Anti-Materiel