Worlds Largest Gun Suppressor!

155mm_suppressor-tfb-tm

This photo, taken at a German Army artillery range, is not a fake.

The side expansion chambers will be to accommodate the blast of the cannon’s muzzle brake.

I know what you are thinking: “WTF!”.It was build to reduce noise to communities nearby. The vehicle pictured is the M109G 155mm self-propelled howitzer.

Many thanks to Sven for emailing it to me.

UPDATE: Thanks to Mark for these images of another German tank suppressor.

UPDATE: Daniel found a US patent that German defense firm Rheinmetall GmbH has on the design of cannon silencers.

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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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  • Crystal

    two words:
    Need. Video!!
    Or at least a sound clip.

  • http://snafu-solomon.blogspot.com/ Solomon

    Wait a sec. This pic has been floating around the internet for years and has always been called a fake. Now its said that this is real!?!?!? Sorry Steve…I need more proof cowboy!

  • http://www.dooms-day-device.com Puke

    That’s one hell of a piece of equipment.

  • http://defense-and-freedom.blogspot.com/ Sven Ortmann

    The difference is that in English forums the consensus is that it’s a fake while in German forums there are almost always people who saw it in real.

    It’s at the WTD in Meppen (kind of a testing range).
    http://www.ww2incolor.com/forum/showthread.php?p=117739
    (many more photos of it)

  • Mark
    • http://www.thefirearmblog.com Steve

      Mark, thanks for the links. I have updated the blog post.

  • Mark
  • Pete

    So , uh, $200 tax stamp and I’d be good to go?

    • http://www.thefirearmblog.com Steve

      Pete, and you can use it for any caliber less then 155mm!

  • david

    i wonder what the sound reduction is, the pic was a bit grainy. Either way, here ya go ATF, $200. I wonder what FFL dealer would accept that? UPS?

  • jake

    I’ve seen this picture floating around the internet for quite a while, and I’ve always wondered if it was some sort of suppressor. Thanks for clearing that up!

  • Nomen Nescio

    what i can’t figure out is why they bothered painting it camo. then again, it’s a piece of army kit, they probably had soldiers standing around doing nothing else useful…

    • http://www.thefirearmblog.com Steve

      Nomen, LOL, good point!

  • Matt Groom

    Yeah, but will it fit on my .22?

  • http://www.wallsofthecity.net Linoge

    Wow. Those look like earmuffs for a bloody Gundam!

    I really do have to wonder how much of an impact they make on the sound… and how often they have to replace the internals.

    they probably had soldiers standing around doing nothing else useful

    Well, that is why the last generation of Battleships still had wooden exterior decks…

  • http://www.thegunzone.com/556dw.html Daniel E. Watters

    Here is Rheinmetall’s US patent for cannon sound suppressors. The illustrations show versions for the Leopard and Gepard.

    http://www.google.com/patents?id=56QlAAAAEBAJ&printsec=abstract&zoom=4#v=onepage

    The side chambers for the M109G sound suppressor would seem to accommodate the venting of the muzzle brake.

    • http://www.thefirearmblog.com Steve

      Daniel, great find! Good point about hte muzzle brake. I had just assumed they were additional expansion chambers.

  • Pop N Fresh

    hmmmmmm…………… what’s the word I’m look’n for…….phallic.

  • Henry Bowman

    “I know what you are thinking: ‘WTF!’”

    Actually, what I was thinking was, “It’s Doctor Evil!”

    http://tinyurl.com/yfclreu

  • Gerrald

    Looks like a penis and testicles.

    • Dirty Mind

      Can Tell what you have in your mind ! :)

    • PJW

      Really, thanks for pointing that out.

  • http://www.gunsellers.com Mark

    Why would you need a suppressor for a tank? Who cares if it is making noise, you are fighting a war.

    • Montross

      the article clearly states it’s to reduce noise pollution to neighboring communities.

  • guy

    I would think this is fake just for the fact that it wouldn’t be functional when aiming at any moving targets, it’s angle of projectory is constant due to it being mounted to the metal strucures shown above, therefore it could only be used for defending a key spot, maybe the entrance to a bridge or border? Where you expect an attack However using something that can adjust it’s aim would be much more useful than muffiling the sound disturbing nearby communities. I know the germans are too smart to mass produce these but they may however had one too many beers and came up with the idea of a silencer the size of the tank and then constructed it for shits and giggles, now that I can believe!

  • http://www.thegunzone.com/556dw.html Daniel E. Watters

    guy: It is used at a test range so as not to disturb the neighboring community. It is not meant for combat.

  • http://www.ar-parts.com TIM

    I wonder how much the damn thing cost.Maybe they could dual purpose it as a jet engine test station for testing in neighborhoods.

  • Bombshell

    I know this is way old but I looked around about it and it does seem legit. Read a discussion on an artillery forum and the guys there apparently figured out it was from Meppen, Germany. If you scroll to the bottom of

    http://www.ww2incolor.com/forum/showthread.php?6073-German-Artillery-silencer-!!/page2&s=784bf2d1c3846925c47ef3272fdb9d58

    It shows a letter written back to him from the range in Meppen along with more pictures from different angles and with the silencer apart. I know it’s not concrete proof but seems legit. I didn’t believe it at first.

  • 47Pilot

    This actually makes a lot of sense considering its in Germany. I flew helicopters in Germany and the Germans are VERY picky about noise. Apparently, not just for the U.S. Army. They would complain about noise from helicopters, aircraft maintenance (APU’s), small arms range. Anything that could be heard oustside the gate.

  • Anon

    It looks like a dick.

    • PJW

      Really — thanks for pointing that out.

  • http://www.facebook.com/l4p4k Ebrahim Ravat

    First picture looks wrong, oh well…

  • NRK99

    That is one big Dick i have ever seen

  • PARTYBOY

    WHOA’W WHAT’TA BIG DICK AND ITS HARD