Why does the military and police use the MP5 and HK UMP when the higher caliber Thompson SMG is still here?

The Thompson uses .45 ACP, more powerful than the MP5's 9mm.

HK UMP and Thompson are both .45 ACPs but the Thompson has more magazine capacity.

Thompson isn't "low tech". WWII wasn't a hundred years ago.

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  • Mark F
    Lv 7
    9 years ago
    Favorite Answer

    1. the M1 Thompson SMG was declared obsolete about a half century ago. It is heavy, expensive and inaccurate.

    2. The military make almost no use of SMG's today and even the police have largely replaced them with assault rifles.

    3. The MP5 is lighter, more compact, more reliable and more accurate.

    4. The 9x19mm Parabellum cartridge contrary to the opinion of the illiterate actually produces more muzzle energy than the 0.45 ACP (583 Joules compared to 446 J) but both produce virtually identical wound patterns when fired into ballistic gel. This idea that the 0.45 ACP is some sort of uber manstopper while the 9mm is a pea-shooter is a myth. Just ask the millions of people who have been killed by 9mm rounds.

    5. The Thompson's basic design dates to 1918 which was nearly 100 years ago.

  • Anonymous
    4 years ago

    This Site Might Help You.

    RE:

    Why does the military and police use the MP5 and HK UMP when the higher caliber Thompson SMG is still here?

    The Thompson uses .45 ACP, more powerful than the MP5's 9mm.

    HK UMP and Thompson are both .45 ACPs but the Thompson has more magazine capacity.

    Thompson isn't "low tech". WWII wasn't a hundred years ago.

    Source(s): military police mp5 hk ump higher caliber thompson smg here: https://tr.im/SuzWh
  • hick
    Lv 4
    3 years ago

    Ump Vs Mp5

  • Fred
    Lv 6
    9 years ago

    The US military use M4s and M16s, they do not use the MP5 or the UMP.

    The MP5 is used by SWAT to reduce collateral damage in close range situations. It's made to put alot of bullets down range, while not penetrating very many walls.

    The Police do not try to kill, they only try to subdue.

    The Tommy Gun is over a hundred years old, it was very inaccurate and wasted bullets.

    In service 1938–1971 (officially, U.S. military)

    Designed 1917–1920

    It's 96yrs old.

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  • Anonymous
    9 years ago

    The military and polie for the most part don't use .45 ACP.

    This in part comes from the perception that the .45 acp is so powerful that they might as well usee an m4 carbine.

    Even if a force were to use 4.5 acp the would use some thing like the m9m1 which would be more ergonomicaly advanced and use plastics instead of wood making them more durable in harsh conditons.

  • 9 years ago

    The military doesn't use MP5s, probably contractors do but that's because they suck. The SWAT uses MP5s, considering the fact that they work at close quarters. The military uses M4a1's and M16a4's, because they are very proficient and reliable rifles. Thompson!?!?!? Really!?!?!? That thing is ancient! It may have .45 ACPs, but you have to look at the gun and not the bullets. It's very very very inaccurate, therefore rendering it useless in modern combat (plus you can't really place any useful attachments on it).

  • Anonymous
    9 years ago

    Those guns are essayer to move around in tight spaces and can be fitted with a silencer the M1 Thompson can`t that`s probable why it`s used in stealth operations and the recoil is hard to control in full auto mode with the Thompson the UMP5 and HK5 are piratically the same gun and have less recoil .

  • Marie
    Lv 4
    4 years ago

    Of course she is still there and Marco is not stupid Doc - he would have respected her for having the guts to say what she felt and I don't think it was a tactical move on her part. Now Grant is a different kettle of fish - Marco saw right through him and chucked him out and did I laugh with glee!!

  • J
    Lv 6
    9 years ago

    The Thompson weighs a ton even empty.

  • Anonymous
    9 years ago

    The Thompson is expensive to produce (for a firearm)

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