SubscribeA reliable QCB system: FN Herstal is the original producer of the Browning .50 cal. machine guns.
FN Herstal was the first company to propose a Quick Change Barrel (QCB) system thus marking the end of tedious and difficult headspace adjustments. The FN QCB system allows the barrel change to be carried out by one man, reduces exposure time to enemy fire and returns the weapon quickly to operational condition after barrel change out.
Target effect
Although classified as a machine gun, theM2HB-QCB can be compared to medium caliber cannons, as the M2HB-QCB is capable of firing explosive incendiary rounds and a full range of ball, tracer, armor piercing, and incendiary cartridges.
Easy and quick conversion of M2HB models
The difference between the old M2HB version and the FN Herstal QCB configuration is relatively small in terms of specific parts. M2HB machine guns can be converted to QCB versions: - at customer location - by the armorer - without complex tools and machines - in less than 30 minutes per weapon
One weapon for many roles
- Heavy fire support for the infantry : mounted on the M3 tripod to defeat light armored vehicles, bunkers, buildings,…
- Low level air defense : mounted on the M63, to engage low flying aircraft and helicopters.
- Light vehicles external mountings on jeeps, transport and logistics vehicles.
- Armored vehicles : external mountings of all types or armored vehicles.
- Main armament in turrets or as a coaxial machine gun.
- Patrol boats : as the main or as secondary armament.
Technical data :
• Operating principle:Short recoil of the barrel
• Overall weapon length:1,656 mm (65.2 in)
• Barrel length: 1,143 mm (45 in)
• Weapon weight: 38.150 kg (84 lbs)
• Barrel weight: 13 kg (28.63 lbs)
• Effective range: 2,000 m (2,187 yds)
• Firing modes: Single shot, full automatic
• Feeding: Disintegrating link belt (M2 or M9 link)
• Cyclic rate of fire: 485 to 635 rpm
