Mendoza RM2

The Mendoza RM2 was a light machine gun similar to the M1918 BAR manufactured in Mexico by Productos Mendoza, S.A.. Rafael Mendoza have been producing machine guns for the Mexican Army since 1933 and all have been noted for their lightness and cheap construction without sacrificing reliability.

Mendoza RM2
Class Manportable
Type Machine Guns
Manufacturer Productos Mendoza
Production Period 1928 - 1933
Origin Mexico
Country Name Origin Year
Mexico 1933
ManufacturerName Production From Production To Quantity
Productos Mendoza 1928 1933 View

The Mendoza used a gas-operated Lewis LMG operation with improvements, an overhead box magazine and a quick-change barrel. It used a gas cylinder system that delivers a short impulse to the piston, and the bolt is similar to that of the Lewis Gun, rotating and driven by two cams engaged with the piston rod. The RM2 is the most recent model and adds a simplified method of stripping, by simply removing a lock pin, the stock and rear of the receiver can be folded down to allow the bolt and piston to be withdrawn backwards.

The M1933 Mendoza was a reliable weapon and a modern design at that time. Features of gun included a quick change barrel system. (the barrel retention mechanism was designed by Rafael Mendoza and had a U.S. patent. The rate of fire was 400 rounds per minute (with an open shutter). The caliber was 7x57mm Mauser, which were standard cartridge Mexican army since 1895. It was fed from a 20-round magazine similar to that found on the Madsen LMG. However,the Mendoza magazine was inserted on the top right of the receiver, while Madsen magazine was to the left. One of the innovations gun Mendoza was symmetrical striker, meaning it was reversible. This allowed the striker,in the event of breakage or any other form of damage, to be taken out,reversed, and re-installed.

Type Light machine gun
Place of origin Mexico
Service history
Used by Mexico
Production history
Designer Rafael Mendoza
Designed 1928-1933
Variants See variants
Weight 6,3 kg
Length 1,092 mm
Barrel length 610 mm (24 in)
Cartridge 7x57mm Mauser

.30-06 Springfield (7.62x63mm)
Action Gas-operated, open bolt
Rate of fire 450-650 round/min
Muzzle velocity 805 m/s (2,640 ft/s)
Effective firing range 548 m (599 yd)
Feed system 20/32-round detachable box magazine

End notes