6.5mm Type 96 light machine
gun, with magazine and bayonet
7,7mm Type 99 light machine gun
Type
96
Type
99
Calibre
6.5x50SR
7.7x58 Type 99
Weight
8.7 kg
9.8 kg
Overall length
1070 mm
1181 mm
Barrel length
550 mm
550 mm
Cyclic rate of fire
550 rounds per
minute
800 rounds per
minute
Feed and capacity
Box magazine, 30 rounds
By the
early 1930s they Imperial Japan Army (IJA) requested the development of
a new light machine gun. In certain aspects the new gun, which was also
designed by Kijiro Nambu, was a better weapon than its precursor, the
Type 11 Taisho LMG – it was lighter and used conventional overhead box
magazines instead of the side-mounted hopper. However, this weapon
still used the same 6.5mm ammunition which had been found to be
insufficiently lethal during the campaign in Manchuria. By this time
(1936, the year of adoption of Type 96 LMG) there already was an
“improved lethality” round, the 7.7x58SR Type 92, adopted in 1932 along
with Type 92 medium machine gun. For some reason, the Type 92
ammunition was reworked from semi-rimmed to a rimless design, to become
7.7x58 Type 99 in 1939. With this cartridge available, the IJA
requested the development of a new light machine gun firing this
ammunition. Trials started in 1938 and included four different
prototypes. As a result of these trials, the IJA selected a slightly
updated version of the Type 96 LMG, rebarreled to 7.7 Type 99
ammunition, as the Type 99 light machine gun, and it was put into
production by early 1941. It should be noted that the 6.5mm
Type 96 and 7.7mm Type 99 light machine guns were almost identical in
appearance and had many similar parts. Also, for most of the war these
guns were used side by side, as there were still plenty of troops
issued with Type 38 rifles in 6.5mm and it was only logical to provide
them with light machine guns in the same caliber.
The
Type 96 light machine gun is a gas operated, air cooled, automatic-only
weapon. The barrel is heavily finned and can easily be removed for
replacement or maintenance. For easy replacement, it is fitted with a
folding carrying handle. The gas system utilises a long-stroke piston
located below the barrel, and a manual gas regulator with five
settings. The locking system features a rising/dropping
locking block located to the rear of the bolt and operated by rails on
the gas piston rod. The sides of the block engage cuts on the
inside of the receiver walls for control of the block's movement. Feed
is from box magazines, inserted from the top. The magazine housing is
fitted with a side-opening dust cover. The curved box magazines hold 30
rounds in two rows. Firing controls include a single trigger and a
manual safety, located on the left side, in front of the trigger guard.
The gun is capable of automatic fire only, although with the relatively
low rate of fire of the Type 96 it was possible to fire single shots by
briefly pulling the trigger. Standard furniture includes a
folding bipod attached to the gas block, a wooden pistol grip and a
wooden butt with a steel buttplate. Unlike earlier Japanese machine
guns, the Type 96 is not fitted with an internal oiler; instead, oilers
are incorporated into the magazine loading tool. One rather unique
accessory to both the Type 96 and Type 99 light machine guns is a
standard infantry bayonet, which can be attached to the gas block below
the barrel. Standard sights are of the open type, offset to the left to
clear the overhead magazine, and marked up to 1,500 meters. Both
versions can be fitted with a long telescopic sight with fixed 2.5X
magnification, which is also offset to the left.
Modifications: Type 99: This is a
Type 96 machine gun modified to accept the more powerful 7.7mm Type 99
ammunition. The most notable external changes include the addition of a
flash hider on the barrel and a rear monopod under the butt. A less
obvious, but probably more important change was adoption of an
adjustable headspace mechanism, built into the barrel lock. Because of
the more powerful ammunition, Type 99 gun has higher cyclic rate of
fire than its predecessor. Type
99 Paratroopers': this is a limited production version of
the Type 99 LMG intended for paratroopers' use. It has a
quick-detachable stock and a forward-folding pistol grip. For
deployment, the barrel and butt were detached from the gun, the pistol
grip and bipod folded, and the entire set then packed into a special
carrying bag, which was carried by the soldier to the