B&T MP45 and MP9N

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Earlier this week I blogged about new Brügger & Thomet APC9. The company has also launched two new version of the MP9/TP9. The MP45, as the name suggests, is chambered in .45 ACP. The second is called the MP9N (N as in Nato) and has a few different internal parts and a new selector switch.

B&T MP45
B&T MP9N
B&T MP9N – Note the rails attached to the suppressor!

The lightweight MP45 does not look like it easy to handle!

[ Many thanks to Starik for emailing me the link. Photo © Starik]

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Steve Johnson

Founder and Dictator-In-Chief of TFB. A passionate gun owner, a shooting enthusiast and totally tacti-uncool. Favorite first date location: any gun range. Steve can be contacted here.


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  • Alex Vostox

    Too bad, when Malaysian defense company failed to utilized this weapons although they got the Steyr license until it was revoked and given to B&T company thanks to corruption by government,its company and defense ministry official! (Fuck you guys to the deepest pits of HELL!!).
    Oh, FYI the same company also got sued by Steyr after withdrew from agreement to joint-produce the improvement version of Steyr AUG for Malaysian Army (Announced in DSA conference 2003) because they got bribed and produced the M4 carbine (Which quality is more shitty than the original one. See? Until now the Malaysian Army soldier continued to use the M4 without any optic sight or accessory, just iron sight) instead. Seriously, even Temasik and Philiphines defense industries are preformed better than Malaysian

    Q:- What is the last Malaysian ‘made’ weapons?
    A:- Never-Left-Drawing-Board Berapi rifle designed by ‘famed’ Russian expatriates living in Malaysia

  • Gregor

    Finally, a new .45 SMG. Im hoping to see the APC9 sooner or later as well in .45

    • Other Steve

      I’m personally curious to see what the action looks like on the ACP. I am guessing despite it’s price, it’s just a very inexpensive traditional blowback design.

      I very much prefer the TP9′s rotating barrel. I could look at that design for hours.

  • MarcW

    Pretty much no market for .45 outside of the US and pretty much no market for SMGs inside the US (where SBRs are the latest craze).

    • DZ

      And SMG’s with less than a 16″ barrel qualify as what? I have 4 “SMG’s” and one of them is almost done being SBR’d. AFAIK .45 is popular in russia and some other baltic states with georgia using the UMP 45 in limited quanities.

      • Other Steve

        It’s weird but some people think that SBR means short-AR. I have three SBRs and only one of them is an AR.

        To be fair though, AR is the absolute best gun to SBR. Nothing else even comes close to being as versatile. My MP5 and TP9 will only ever be 9mm. My AR thought… 22, 223, 9mm, 300blk, etc etc.

      • MarcW

        Not talking about silly BATFE regulations here. An SMG might be an SBR legally in the US, but technically a long arm firing a pistol cartridge has its own categories.

  • Other Steve

    I’m probably one of the only regular readers with an SBR TP9 9mm with suppressor (although not the B&T). So I have a few thoughts on this…

    First off, Steve, the B&T suppressor has always had those rails since it was first designed. The TP9 uses a three-lug mounting attachment system similar but very different from the MP5′s three lug. To start, the lugs are much smaller, and instead of being .5″ at the shaft, it’s a little over 1″ (26.5mm or so). The first import TP9′s had a threaded barrel guide. This is the version I got so I could just make an adapter for my MP5 suppressor to fit on the TP9. The new three lug version pretty much limits you to the B&T made or US made licensed version. The US one iirc is about $1700. If you are going to get a TP9, the threaded version imo is the better buy. The rail on the can is to mount a light or laser since the MP9 only has the integral grip versus the TP9′s rail (which I have grip on anyhow). The side rail is ‘newer’ than the original SPP design.

    Next, there are a few changes I can see right away. The cross bolt selector/safety is gone. They put in an HK style selector. My guess is because the MP9 iirc had clearly defined safety. Pushing it one way was semi, the other was full auto, iirc you could stop in the middle and that was safe. On the TP9, one way is safe the other is semi. This could have also driven several other action/internal changes.

    The body, rails, sights, markings, mags, barrel guide, trigger, all look the same to me.

    A major change is obviously 45acp and I could not disagree more with that! My TP9 is LIGHT way lighter than an MP5k and smaller too. The stock (the traditional one on the 45 version, the one I have) is not comfortable even in the slightest degree. With 115gr 9mm rounds the recoil is a little snappy (since it doesn’t weight anything) and the stock has some definite ‘slap’ to it on your cheek. I can not even imagine that light a gun in 45acp full auto! The UMP is HORRIBLE compared to the mp5-40, it itself it too light for sustained shooting in 45acp. This thing must be a little monster! The unique rotating barrel action / delayed blowback will help, but this thing is just too light for 45acp imo.

    Last, WTF is going on with that stock!? I’m super interested in that, but I can’t really see how it works. Or why it’s changed. The original folding stock already serves as an OK forward grip, so I’m not sure what this is for.

    Glad to see B&T working on the gun. It’s really a very unique setup. Probably the smallest/lightest 9mm PDW I can think of.

    • Adam B

      The stock is built like that so you can get on the sights with riot masks.

  • Lance

    Aww don’t bother go with a regular HK MP-5 or UMP-45.

    • Other Steve

      You’ve clearly never held both. The MP9 is much smaller and lighter than an MP5-K. The UMP is as large as a full size MP5.

  • Avery

    I’m really stating to see the trend here with these sub-guns: 4.6mm or 5.7mm SCHV for penetration, 5.56mm rifle for logistical compability, and .45ACP for energy transfer via hollow-points and other frangible ammunition.

    So, SCHV PDWs for special purpose/counter-terrorism work, sub-rifles for military, and .45 for general law enforcement.

  • J.J

    if the 9mm version of this is as easy and smooth as I’ve heard i would be a little surprised if the .45 version would be so much more uncomfortable.

    • Other Steve

      I like mine, but I would not call it exceptionally smooth. As a pistol, yes, but as an SBR it’s a little snappy because it weights nothing. Don’t get me wrong, it’s WAY better than a blowback gun for recoil impulse, but the reviews I have read don’t exactly match up to the experience with mine.

  • elk hunter

    Hey, just the gun for close range hog hunting in Texas with!
    How about chambering it in:
    400 CorBon
    38-45
    10mm Auto
    9×25 Dillon
    Or make it a little bigger and chamber it in:
    45 Win. Mag.
    475 Wildey (the new Death Wish gun!)
    50 Action

    • Other Steve

      Wait, is that sarcastic? Wow, I don’t think a single one of those calibers makes any sense over 9mm and 45acp.

    • CalAnon

      Steyr originally wanted to chamber this in .380ACP, 9x19mm, 10mm Norma (10x25mm), and there was a technology demonstrator/prototype made by B+T in 4.6mm HK soon after they acquired the design. Of course, there was no interest in any of those calibers.

      What might make sense is chambering it in 6.5mm CBJ (it’s one of those Small Caliber/High Velocity cartridges designed to pierce armor), since 6.5mm CBJ is the same overall length as 9x19mm (and in fact is based on the 9x19mm case, so, all that’s needed is a barrel change), as the 6.5mm round is designed to pierce armor.

  • Netforce

    They both looks very interesting. However, it’s not like the old MP9 model I once saw. It’s the one with a short barrel, much shorter than pictured here. Not sure what the exact name was but these MP45 & MP9N look much better.

    • Other Steve

      No, I think you’re mistaken. Both the 45 and the 9 pictured above have the same 5″ length barrel the MP9/TP9 originally had. Same as the Steyr too. Nothing has changed there.

      For what it’s worth, the barrel of the MP9 can not be seen except from the muzzle end. That part you are seeing is a barrel guide. The barrel travels and rotates inside that guide.

      Wait…. are you looking at the suppressor and calling that the barrel? O.o

      • Netforce

        Haha, no to your last question. And yeah, I think I was mistaken. Thanks for the explanation.

      • Faris

        No, I own both the MP9 and the MP9N i noticed several differences between the two:

        mp9 has traditional rifling and a longer barrel while the MP9N has polygonal rifling and a shorter barrel. may be an inch shorter

        Also the suppressors are different the MP9 suppressor has a piece like a barrel extension that connects to the barrel which i didn’t find on the MP9N suppressor