The MP5/10 SMG is a product-improved variation of the world-famous
MP5 9mm submachine gun. Designed especially for the American Law
Enforcement user, the MP5/10 is chambered for the potent 10mm Auto
cartridge. Operation and functioning principles of the MP5/10 are
identical to that of the 9mm MP5.
Numerous user inspired improvements have been incorporated into
the design. A new bolt catch holds the bolt group rearward after
the magazine is empty. A newly designed translucent (see-through)
synthetic magazine allows the user to see the immediate status of
the rounds remaining in the magazine. These magazines snap together
without the need of an accessory clamp, providing the operator with
sixty rounds of available firepower right on the weapon. Using a
specially developed high strength polymer, these are magazines 30%
lighter and impervious to corrosion.
The MP5/10 will come standard with HK's ambidextrous trigger group
providing for single, 3-round burst and sustained (full automatic) fire
modes. Optional trigger groups, including any combination of the
above modes of fire, will also be available. The safety/selector
switch is easily accessible by right or left handed operators and
does not require operators to change their firing grip to take the
weapon off "safe".
A high degree of interchangeability of parts, accessories, stocks and
slings exist between the MP5/10 and the 9mm MP5. For low light/night
use, HK's own Beta (tritium) self-luminous front and rear sights are
available as an option. Replacing the standard forearm with an HK
Tactical Forearm Light provides the user with an integral 15,000 candle
The MP5/10 is designed to meet the ever increasing call by U.S. Law
Enforcement for a compact, accurate and reliable submachine gun
chambered for a cartridge with increased terminal effects on target.
The 10mm Auto cartridge provides up to twice the muzzle energy
of the standard 9mm parabellum NATO cartridge, and still is easily
controllable due to the unique roller-locked bolt system employed
throughout the HK line of weapons. This perfect combination of
weapon and cartridge puts the firepower, penetration and hard hitting
potential of a .45 ACP Thompson SMG into a package identical in size
and weight to the 9mm MP5!
As with all HK weapons, the MP5/10 fires from a closed bolt. The newly
incorporated bolt catch holds the bolt to the rear after the last round
is fired. Depressing the bolt catch release lever releases the bolt to
chamber the first round of the loaded magazine. Reloading the MP5/10
under stress is quick and easy due to the design and location of the
bolt catch, the ambidextrous magazine release lever, and the convenient
way multiple magazines can be snapped together.
The combat proven recoil operation principle ensures excellent reliability
under all conditions and surgical accuracy to ranges of 150 meters
and beyond. The ability of the roller-locked bolt system to reduce
the peak recoil impulse of the 10mm Auto cartridge translates into
a very controllable, low recoiling weapon weighing less than 6-1/2
pounds. This combination of light weight and low recoil, make the
MP5/10 an ideal weapon for all operators, whether large or small
As a replacement or supplement for the shotgun, the MP5/10 increases
the range, accuracy and penetration capability of the user. Its small
size makes it easy to transport in and out of confined areas such as
vehicles and buildings. Using a 30-round magazine of 10mm ammunition,
the MP5/10 gives the user an undeniabl increase in accurate,
hard-hitting firepower without the hazardous need for reloading.
Ammunition for the MP5/10 is completely compatible with 10mm pistols
used by many law enforcement organizations today. The MP5/10
will feed and function reliably with all types of 10mm Auto rounds,
both high and low impulse, without modification.
The safety of the MP5/10, like HK's 9mmSMG, is assured due to its
positive safety/selector switch, closed-bolt operation and roller-locked
bolt. Series production of the MP5/10 is slated to begin in mid-1991.
A .40 S&W caliber MP5, termed MP5/40, is undergoing development
and testing and is expected to enter series production in late 1991.
Other than caliber, the MP5/40 will be identical to the MP5/10.