This submachine gun resembles the Uzi in some respects,
but it is a totally different and rather simpler design. It
is currently in use by a number of armies and police forces
throughout Europe and the rest of the world.
The receiver is formed from bent and welded sheet steel
and is carried in the frame unit - steel with a molded
nylon covering. The magazine feeds in through the
pistol grip, a convenient system in the dark, and the
bolt is of the 'wrap-around' or 'telescoped' type in
which the actual bolt face is well back within the bolt
and much of the bolt mass is in front of the breech
at the moment of firing. This system allows the maximum
mass for the minimum bolt stroke and assists in producing
a compact weapon. Cocking is performed by pulling
on the carry sling, which is attached at the forward
end to the cocking knob. This, at first sight, is open
to abuse, but a bracket welded in to the top of the
receiver ensures that the cocking action can only
be performed when the sling is held at right angles
to the receiver, on the left-hand side. The normal
pull from the top of the weapon, as when slinging
it over the shoulder, cannot move the cocking piece.
There is a safety catch in the form of a cross-bolt
above the trigger which locks the trigger when set
to safe; it is a three-position bolt; when pushed across
to the right so that a white 'S' protrudes, it is safe;
when pushed across to the left so that a red 'F'
protrudes, it is set for automatic fire. There is also
a half-way position in which single shots are possible.
This safety catch is a weak piece of design in my
view since, except by memorizing, it is impossible
to know what the state is in darkness; it would be
better to have one end ribbed or knurled.
The third position is, in any case, superfluous; with
the selector set to automatic fire, a light squeeze
on the trigger fires a single shot, and this can be
repeated as often as wanted. To fire bursts, a
heavier squeeze is required. There is no need to
reset the selector lever at all, and I can only
assume that the central position has been put
there as a safety feature during initial training,
so that an over-enthusiastic squeeze will not
produce a runaway gun. This two-stage trigger
is also to be found on the Steyr AUG rifle and
takes some getting used to; I have found it a
hindrance to accurate shooting in the automatic
mode.
The MPi 69 is easy to strip and reassemble, taking
no more than 15 seconds in either direction for a
trained soldier. Strictures on the safety and trigger
apart, it is a well-designed, simple and robust
weapon - and, provided soldiers are trained to
its peculiarities, a highly effective one.
first authored and published by Ian Hogg in his book entitled
Modern Small Arms
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