AK-50 Successfully Fires its First .50 BMG Round

It’s been about three years since Brandon Herrera, also known as The AK Guy, came up with the idea of designing a scaled up AK-47 chambered in .50 BMG. He has recently finished some initial assembly of the AK-50. The gun was assembled just enough to see whether it will be able to fire or not. And the first test fire was successful!

As you can see from the video, the AK-50 currently has only the bolt carrier, bolt assembly, the milled receiver with the barrel pressed and pinned in place, and the trigger mechanism. Now that they have confirmed that the gun is in spec and matches their expectations and calculations, they’ll go on with making the rest of the parts and assembling a complete working AK in .50 BMG.

A couple of days before this video, Brandon has also shown some of the manufacturing processes of the prototype AK-50, as well as a test fire of a blank .50 BMG round.

The idea of a .50 caliber AK-47 possibly came to minds of many people, but The AK Guy has actually made it. One can only imagine how much time and money, intellectual and physical work is put into this project. I am sure there were moments of frustration and disappointment, but this guy kept pursuing his dream and looks like it is coming true.

I was following this project for quite a long time and by seeing the devotion of The AK Guy to his project and judging from the teased information, I was sure that it won’t have a problem with this test fire. To me, the real challenge will be making it properly function and cycle the action.

Hrachya H

Being a lifelong firearms enthusiast, Hrachya always enjoys studying design, technology and history of guns and ammunition. His knowledge of Russian allows him to translate and make Russian/Soviet/Combloc small arms related information available for the English speaking audience.
Should you need to contact him, feel free to shoot him a message at TFBHrachyaH@gmail.com


  • Major Tom

    Good. Good! Now make it fire full auto! :3

  • Mike Lashewitz

    Damned cool! I want one!

  • Audie Bakerson

    Not 12.7×108mm?

    • Anonymoose

      Where are you going to find 12.7×108 on this side of the Pond? Besides, the Russian Kord and NSV can be swapped to 12.7x99mm NATO, and they have basically the same performance.

      • SGT Fish

        its available, just not in large quantities. Bowman Arms has some in stock right now for DSHK owners

        • SGT Fish

          but yeah, itd be pointless

  • Jakob Thomas

    Please harden the bolt…. just saying….

    • Sunshine_Shooter

      I think they will, based on the line “and it wasn’t even hardened!”. That sounds like they planned to do that later, but were running a worst-case type scenario.

  • Mike Crumling

    Hasn’t he been working on this project for the last two years or something?

    • Giolli Joker

      He says 3 years.

  • Raptor Fred
  • gunsandrockets

    Didn’t someone make a gas operated 5 shot semi-auto .50 BMG rifle back in the 1990’s? I remember handling one back then. IIRC is was built like a scaled up FAL.

    • Giolli Joker

      Pauza P-50?
      “Designed by Robert Pauza in the early 1990s the .50 BMG P-50 operated by short-stroke gas piston and used the tilt (or prop) bolt-locking system similar to that found in the FN-FAL rifle. In fact, although much larger, the tilt bolt and carrier of the P-50 almost mirror those of the FAL. Pauza manufactured about 50 P-50 rifles before the recession of the ’90s forced him to close his business.”
      (from an article about the MG Arms .50 BMG Behemoth on Shooting Illustrated website)

      • jcitizen

        I remember seeing what looked like a brand new scaled up Bren light machine gun in 50 cal BMG at a Texas gun show around 1988 – I never wrote down the manufacturer, because I thought they’d be in business forever – but apparently no one was willing to spend $4500 on a semi-auto 50 back then. How times have changed!

    • Young Freud

      There’s been others that look very similar to the Pauza P-50 that I wonder if they copied the design, like the Accuracy Intl. AS-50.

  • jerry young

    I think it will be a beast when finished and kick like a mule so I want to shoot it!

  • HenryV

    Awesome. Just awesome.

  • lucusloc

    Do they have a MSRP yet?

  • Brett baker

    Admit it, if it keeps working, and is less than a Barrett , we’ll all want one. Any chance of a 14.5?

    • jcitizen

      You’d be getting into NFA territory with 14.5 – not worth it unless you have an SOT to play with.

  • Christian Hedegaard-Schou

    That seems like it will have way too much moving mass for recoil to be manageable or fun.

  • treebasher
  • jj

    Try this with a Stoner design and see how many lawsuits you get on your first video. ‘Murica.

    • Max Glazer

      From whom?

  • Scott

    Cool, but I see [no pun intended] detached retinas 🙁

  • jcitizen

    I felt like I went through hell just trying to develop a recoil reduced single shot 50!! I can’t imagine doing this with confidence – I know just enough that I’d get into deep trouble once I thought I had the metallurgy figured out. That is why I started with a State Arms action, so I wouldn’t have to do that part – at least.

  • The Brigadier

    In Fallout New Vegas you can buy a .50 BMG sub machine gun at the specialty gun dealer on the north side of Vegas. It decapitates the Fiend Gang members with ease. It looks somewhat like Raptor Fred’s AK picture in this thread.