U.S. Ordnance M240 GPMG, fully-automatic, 7.62mm machine gun
7.62x51 mm NATO
Firing Mode
Operating Principle
Max Effective Range
1800 Meters (1968 yds) - Iron Sight
Max Range
3725 Meters (4075 yds)
Muzzle Velocity
834 m/s (2740 fps)
Rate of Fire (cyclic)
650-900 Rounds per minute
Weight (complete gun)
11.79 kg (26 lbs)
Weight (barrel)
3 kg (6.6 lbs)
Length (barrel)
630 mm (24.8 in)
Length (complete gun)
1,263 mm (49.7 in)
Width (folded bipod)
160 mm (6.3 in)
Height (folded bipod)
225 mm (8.9 in)
Chrome Plated Bore
The 7.62mm NATO M240B/General Purpose Machine Gun (GPMG) is a very reliable, fully-automatic, gas-operated, disintegrating link, belt fed, air-cooled, crew-served weapon. It fires from an open bolt and features a quick change barrel with fixed headspace. The M240B is the US Infantry version and is equipped with a buttstock, folding bipod, forestock and multiple M1913 Picatinni rails for mounting optics, laser illuminators, and accessories. The M240B provides accurate and effective sustained rate of fire required to suppress and destroy enemy soft targets.
key features
available options
  • Gas-operated – Recoils with gas-assist boost. Three gas settings to maintain a consistent rate of fire.
  • Positive Locking of Bolt Body – Firing pin is part of bolt and operating rod assembly, and cannot strike primer until bolt is fully locked.
  • Fires from Open Bolt Position – Prevents explosion of cartridge (cook-off) after prolonged firing.
  • Can be configured for Left or Right Hand Feed.
  • US Ordnance parts interchange with existing M240 and GPMG equipment in customer inventory.
  • Compatible with all existing M240/GPMG mounts and tripods.
  • The charging handle guide is machined into the right side plate which eliminates receiver breakage that occurs with older riveted design.
  • Surface treatment on bolt locking lugs provide extended receiver service life.
  • Barrel head shield.
  • Hydraulic buffer system available by request.
  • Forward M1913 accessory rail by request.