Switzerland Adopts B&T MP9-N As Machinenpistole 14

According to IHS Jane’s, the Swiss Armed Forces have adopted the B&T MP9-N as a personal defense weapon (PDW) for its echelon troops:

The Swiss Armed Forces have selected the 9 mm Mp 14 submachine gun and the 40 mm single shot grenade launcher Mzw 14 from small arms manufacturer B&T, company representatives told IHS Jane’s at the B&T Police Equipment Show in Thun.

“We delivered the first batch of B&T MP9-Ns, named Machinenpistole 14, under a framework agreement,” B&T owner Karl Brügger said.

The Swiss Land Forces plan to introduce the Mp 14 as a personal defence weapon (PDW) for troops behind the front lines, who do not need to carry the much larger Sturmgewehr 90 assault rifle.

Swiss army officials are also examining the idea to replace the majority of its semi-automatic pistols with submachine guns.

The MP9-N is a 9mm Parabellum/NATO compact submachine gun with suppressor and accessory mounting options, and a folding stock. The MP-9 was originally the Steyr TMP, before then-Brügger & Thomet bought the design, modified it, and renamed it.

Nathaniel F

Nathaniel is a history enthusiast and firearms hobbyist whose primary interest lies in military small arms technological developments beginning with the smokeless powder era. In addition to contributing to The Firearm Blog, he runs 196,800 Revolutions Per Minute, a blog devoted to modern small arms design and theory. He is also the author of the original web serial Heartblood, which is being updated and edited regularly. He can be reached via email at nathaniel.f@staff.thefirearmblog.com.


  • Oaf

    Thoughts Ethan?

  • MPWS

    What this seem to suggest is that 9mmPara is still respected round and will remain so in future. The package itself looks kind like Uzi II (one time made by Ruger).

    • ostiariusalpha

      Hmm, I thought the main complaint against the 9mm in the PDW role was it’s lack of penetration against soft armor. Do the Swiss feel that the round is adequate for noncom personnel to either retreat or hold off an attack long enough for better equipped units to show up? 9mm is certainly cheaper than the more purpose designed PDW cartridges.
      I like that updated bio photo also, Nate. Nothing says small arms know-it-all like a toggle action rifle.

      • Tom

        The Russians have been using AP ammo in 9mm for a while now so its not that it cant be done it just needs ether saboted projectiles or insane pressures. I would imagine if they are looking at phasing out pistols all together then there is no reason not to use some very hot ++p ammo (no chance of it being fired through a pistol and blowing someone hands off).

        • Lange

          AFAIK the MP9 is not equipped to be fired with russian AP 9mm. There are conversion barrels for 6.5mm CBJ though.

          • Giolli Joker

            6.5mmCBJ is pretty cool indeed, but I doubt it has ever reached anything more than a development stage…

      • Anon. E Maus

        There’s specific army loadings here and there that do good jobs.
        The Russians field hot loaded AP rounds in their 9mm SMGs for extra range and penetration, and in Sweden we used the m/39b loading of 9mm in our subguns, very hot loaded and penetrates armor well.

        I also think a 9mm SMG with hot-loaded AP ammo is by far a better PDW than the MP7, if I may say so myself. It also helps that the TMP/MP9 doesn’t have a finicky gas-system that requires frequent cleaning by an armorer.

      • Cornelius Carroll

        “Do the Swiss feel that the round is adequate for noncom personnel to either retreat or hold off an attack long enough for better equipped units to show up?”
        That very well could be it: a practical decision rather than an optimum decision.

      • Freefly

        I’m not sure if the MP9-N equipped personnel previously carried the 550 rifle or only pistols, but if they “carried” rifles, they probably didn’t have them at arms length distance during most of their echelon duties. This scenario doesn’t seem to fit the well prepared & efficient mentality of the Swiss. But if they were previously issued pistols, now having a PDW with a stock significantly improves their ability to fight more effectively between 50-100 meters. Sure there’s little or no ballistic advantage with the MP9-N over a pistol, but the accuracy and speed at which they engage targets is a huge advantage.

      • The soft armor issue is largely moot in the era of ceramic and poly III/IV plates.

      • Blake

        The Russians solved that one with 7n21 & 7n31. Check out the PP-2000

    • Kovacs Jeno

      The Mp9 is rotating barrel locked breech gun, with its lower and upper made of polymer, its very light and easy to controll. It is not in the same class with Uzis.

      • It is also a pain in the butt to reassemble.

        • joeblow

          Seriously? Maybe the first few times. It’s not harder than a Ruger .22.

    • The Ruger MP9 has no relation to the B&T MP9, aside from the name.

  • Can anybody say what is in the background? The thing with the forearm straps?

    I’ve tried B&P catalogues and Google search, but didn’t find anything like it.

    • Ben

      Its a hoster for the MP9. The cone shaped piece goes into the muzzle.

      The straps go round your thigh.

      • Hahaha, I didn’t think to look for that, now that’s dumb of me. Thanks!

      • noob

        hmm that would mean it’s incompatible with having the suppressor mounted. you’d have to keep the suppressor in a pouch or something.

        • Ben

          That would be a sensible thing to do regardless.

          Suppressors have a lot of negatives despite their (obvious) positives. They get very hot, very fast, which means that you’re likely to severely burn yourself or others (esp. when mounted on such a short weapon) or significantly damage/destroy the suppressor if you put a lot of rounds through it very quickly. They also make the gun filthy and more prone to jamming, as well as blowing a lot of unburnt powder back into the shooters face.

          Ultimately, suppressors are really great for some purposes (low ROF stuff such a hunting [the most dangerous game or otherwise]) but are really awful for others unless necessary.

  • Esh325

    So I take it the shorter versions of the Sig assault rifles available didn’t fit in the bill so they turned to this? For a war gun, I think the 9mm is a little underpowered.

    • Kelly Jackson

      What’s a “war gun”?

      I wouldn’t say the MP40 was under powered given the way the Nazis rolled over most of Europe with it.

      • SP mclaughlin

        Well they really rolled over Europe with 8mm Kar98’s and MG34’s more so than with MP40’s as movies would have you believe.

        • Rock or Something

          I would actually say the Soviets were able to roll over Nazi-held Eastern Europe, in no small part to outfitting whole companies with PPSH submachine guns that fired 7.62×25mm Tokarev rounds.

          • Cyndee Sylmar

            And they out produced Germany in the tank dept. With help from US.

    • Lt M

      From the article:

      “The Swiss Land Forces plan to introduce the Mp 14 as a personal defence weapon (PDW) for troops behind the front lines, who do not need to carry the much larger Sturmgewehr 90 assault rifle.f”

    • schizuki

      Given the odds that Swiss troops will have to actually shoot at anyone, the 9mm is just fine.

    • 2wheels

      This seems to be more aimed towards replacing handguns than it is replacing rifles. And chopping down an assault rifle doesn’t really work for people who need a truly compact weapon anyways. Handguns are often used to fill that role, but handguns suck.
      Give me the choice between an M9 or an MP9 on my leg when I’m working and don’t have my M4 handy… I’ll take the tiny subgun everytime!

    • joeblow

      Dude, you need to get on the phone with NATO. They made a HUGE mistake and you need to point it out to them. They’ve been going to war for 50 years with that little underpowered round. Good thing there’s people like you out there to let them know dozens of conflicts and thousands of dead aren’t indications that the 9mm works.

  • derfelcadarn

    Si vis pacem, para bellum. Seeing the truth for what it is, saves lives and treasure.


    They should contact hi point for their 9mm carbine. It will save them tons of money!!!
    Besides if all else fail chain together a bunch of hi point 9mm together put a round in each jerryrig a remote trigger pull you got your self a CLAYMORE mine! Take that mp9.

  • I wonder if its much cheaper than the HK mp7

    • Anton Gray Basson

      Well if it isnt, its cheaper than building stockpiles of 4.6 to go with it.

    • CommonSense23

      4.6 doesn’t exactly inspire confidence as a defensive round.

  • Manny Fal

    Well the suppressor as standard means this packag is designed for sneakiness. Rear echelon troops would run away, then either sneak up to an enemy or pretend they are civilians with the machine pistol hidden on their person. Then they take them out with a suppressed shot and steal their rifle. Sounds like a good strategy. This would also allow them to just try to escape the location disguised as civilians but the compact size of this PDW means it can be carried concealed for defense. Can’t do that with an SBR rifle.

    • Sledgecrowbar

      Life is surprisingly different from video games. Lots of manufacturers add suppressors to their displays for the eye candy value, don’t get carried away by it.

  • 2wheels

    I wish the US Army would come around to the PDW concept… I’d be the first in line to turn in my M9, I have zero confidence that I’d be able to defend myself with that weapon.

  • John

    This. This is why I don’t understand why U.S. police departments rushed out to adopt the Heckler and Koch MP7. If you want an Uzi-type weapon without the weight and rough finish of stamped metal, get this. Compact, foldable stock, and it’s compatible with most 9mm weapons issued to cops. Simplified logistics, reduced initial and overall costs, and it looks intimidating enough.

    Unless they’re using .40 ammo, but whatever.

    • Back when the TMP was introduced, Steyr claimed that it could be adapted to other cartridges, including 10mm Norma. Obviously, that never happened. B+T has previously displayed a 4.6x30mm variant, but nothing ever came of it either.

      • hikerguy

        Of course you cannot believe everything you read on the net, but I read on a PDW site a few years back (cannot remember the name of it, it’s defunct. Some Swedish author owned it) said there were teething problems and they couldn”t make it work. They did, as stated earlier in this thread, made a model with the CBJ round. Tony Williams tried it and said it was superb.

    • Spade

      I’ve read the MP7 requires regular armourer level maintenance. So that would be annoying for a small cop department.

      • It’s an HK. OF COURSE it requires regular armorer service. HK presumes that professional organizations have logistics support.

    • hikerguy

      I agree. But, as usual, it makes too much sense to those who are in charge.

  • TonysTake

    I would love to move from the US to a country that believes in freedom. It’s a shame the Swiss enforce their immigrations laws and defend their borders. But I guess that is what keeps them free.

    • KestrelBike

      You need to hit the books again if you think that the US is not at the top for personal freedoms.

      • BearSlayer338

        Our personal freedom’s are being taken away bit by bit soon there will be none left unless we do something about it.

      • TonysTake

        And you need to open your eyes to what has been taken from you over the last 50 years.

        • KestrelBike

          I definitely won’t dispute that, but that doesn’t mean we’re still not head & shoulders above any other state in the world.

          • BearSlayer338

            For how long is the question though.

          • toms

            I would disagree after traveling through numerous countries in the world, we are up there but not really the best for personel liberties or firearms anymore. There are plenty of smallish E European countries with equal or better gun laws, better personel freedoms, better educated populous, better tax structure and less centralized authoritarian governments. Sorry but we need to turn the trend around as that mantra is not really true anymore, seriously.

    • Cyndee Sylmar

      Switzerland is one. Probably the only one that is on par with America as far a freedoms go, especially with guns. Unfortunately America is slowly becoming a 3rd World country. 20 million illegals, give or take, sucking up free education, medical care, housing assistance, welfare. If we only treated out Vets with such generosity. Here we have gangs who like to shoot people for no reason other than to show how tough they are, terrorist attacks which will increase. Big demand for dope Americans are sniffing, snorting, injecting, smoking. Some loon on anti depressants shoots up some people and the uninformed are clamoring for banning guns. The only thing that will do is keep law abiding citizens from having them to defend against the barbarians at the gates of civilization.

  • Sledgecrowbar

    If this is how they plan on making their famous cheese now, I’m switching to cheddar.

    I’d pay to watch the process, though.

  • Dan

    The Swiss can adopt me now to shoot their little sexy gun!

  • Maxpwr

    I wonder if they’ll be able to keep the MP9 when they retire like they can do now with their service pistol.

  • snmp

    B&T MP9 have heavy helmet stock

  • Cyndee Sylmar

    I know something about guns but far from being any kind of expert. Wasn’t the M 1 carbine supposed to replace the .45 auto in certain situations? The .45 auto has excellent stopping power and with a double action, high capacity magazines, why not go back to the .45?

    • Um, because a double stack .45 is too big for too many troops?

  • Doom

    Seems like it would be really awkward and hard to shoot with that upside down kind of stock.