Scorpion – Russian Ammunition Belt Storage/Feeding Backpack System

Russian company “FRONT – Tactical Systems” has developed, patented and manufactures a backpack style ammunition belt storage and feeding system called Scorpion. It works with 7.62x54R ammunition and with PKM machine gun and its versions.


Russian special forces requested such a feeding system a long time ago and the FRONT finally came up with a solution. Scorpion system allows the machine gunners to carry more ammunition and at the same time have all the ammunition readily available, without a need to reload. The system holds 550 rounds of 7.62x54R ammunition on standard PKM non-disintegrating belts. The main backpack compartment contains 475 rounds and there are additional 75 rounds in the feeding arm. The ammunition is held in a metal case which is then placed inside the backpack. So if the backpack gets damaged, the mentioned case can be placed inside any other backpack with similar dimensions. Scorpion’s backpack has the following dimensions: 18″x12″x4″.

Scorpion (4)

The feeding arm is made of a high strength steel with a special anti-corrosion coating. It is pretty long (5.25 feet (160 cm)), which makes weapon manipulations relatively easy with the system attached. The feeding arm attaches to the ammunition can attachment bracket on PK type machine guns.

Scorpion (5)

The backpack and feeding arm cover come in many color and camouflage options: black, tan, OD green, coyote brown, foliage green, ACU etc.

The Scorpion system is available through the manufacturer’s website at 36900 rubles, which is equal to about $580. There is no information about the availability or ordering possibility for US customers.

Here are some videos demonstrating the Scorpion system:



Phone: +79217160347

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


  • I.V.Stalin


  • iksnilol

    This has me hot and bothered.

    Combine it with the bullpup PKM.

    • Jake

      how bout we just put the A10 30mm gatling cannon on an M1 Abrams chassis

      • iksnilol

        Why not both?

        • Jake

          why dont you put on a bikini and rub yourself in canola oil 🙂

          • iksnilol


          • SignalFromTheRim

            I would like to see that.

          • yodamiles

            Send me the picture……wait …..NO, DON’T

          • wetcorps

            Use cosmoline and we’re talking.

      • Anomanom

        Why doesn’t that sound like a bad idea? Replace the standard turret with one carrying a 30mm GAU-8/A combined with an anti-aircraft/anti-projectile radar kit and deploy it as a heavy SPAAG. Add on one or two to armour units to provide protection from airborne and lighter ground threats.

        • Major Tom

          Make with modular add-on kits so you can bolt on various missile and rocket launchers to give it multi-mission functionality too.

      • LCON

        did that done that

    • roguetechie

      I think I have a picture somewhere of that exact combination being tested out somewhere.

      My issue with the belt packs like this is actually twofold.

      1. Panic fire is a thing that can and does happen to even multi deployment exceptionally well trained soldiers. With this being the case, how smart is it to put the entire ammunition supply carried by the gunner on one continuous belt?

      Depending on how much linked ammo is being carried by other squad members you could easily be in a real hurt since they are a substantial portion of a squads combat power.
      What happens when your gunner takes a round in the opening 3 seconds of a firefight?

      Now you’re MG is sitting there physically connected to the now face down gunner with a major portion of the belted ammunition strapped to his back.

      How fast can you separate the gun from the feed chute?

      How fast can you unhook or otherwise get the feed backpack off the gunner?

      How fast can someone who doesn’t run the MG often get the gun separated get a belt into the feed tray correctly, slam top cover, recock the gun and start firing again?

      Pretty much the answer to all of these questions is, not fast enough when you’re doing it directly within a zone that offers zero cover from the ambush party.

      As an even more sickening thought, what happens when your gunner is wounded bad enough that he needs to be dragged into safety and can’t help you get the pack off him nor manage to even hold the gun up so you’re ONLY dealing with his weight, the ammo packs weight, the flexy yet still very prone to catch on stuff get stuck etc chute?

      It just really strikes me that there are several separate ways that this creates a single point of failure which would compromise a huge chunk of the squad’s ability to be effective.

      Plus, this makes gunners an even more valuable and more distinctive target… Neither of which are good on their own.

      • iksnilol

        Well, how fast can you do that stuff on the reg? I honestly don’t see the problem. Also, the whole “panic fire” argument is a bit antiquated and depends on discipline.

  • JT303

    The pictures alone would haunt Dianne Feinstein for the rest of her life.

    • BattleshipGrey

      I hope so.

  • Major Tom

    I’ve heard conflicting evidence that ammo backpacks like this both save weight for the machine gunner and increase weight on the machine gunner.

    Anyone got a confirmation or theory either way?

    • Anomanom

      I imagine it’s an increase of weight on the user over all, since they carry more ammunition total, but less weight on the arms, since there is no box of ammunition hanging from the gun.

      • User

        But a heavy chain thingy + beeing bad balanced. And suck insanly for clearing malfuntions.

        • iksnilol

          Clearing malfunctions isn’t really a Russian thing. It’s more for the poor sods armed with M249s and such.

          The feed chute doesn’t seem to be badly balanced IMO, it pulls the weight to the back.

          • LCON

            In Russian army gun never jam just demand bayonet time.

      • LCON

        Actually I think the ammount of ammo whole remains the same. the difference is that where currently additional ammo would be stored on it’s own in the assault pack here IT’s just a continuous belt to the large capacity magazine which basically takes the place of the assault pack. In other words there should be no real change.

    • LCON

      basically it’s about where the weight is. in a conventional mode the PKP loads it’s belts in a can under the weapon that turns an 18 pound MG into 26.6 pounds give or take. and all the weight is on the weapon. Oh that’s just bipod no optic. now you give them a pack. now the weight is being distributed to the hips the weapon wight being held is maybe 19 pounds but the weapons has a long belt of ammo as these packs can carry more rounds in a single belt then a drum or sack.

    • Machinegunnertim

      Well it depends on who is using it. Just a few years ago when I was active duty the gunner would walk around with a 50 round starter belt (for an M240) and the team leader and ammo man got to carry the rest of the ammo.

      Now that’s regular infantry though. If they got a hold of one of these and the gunner had to carry a lot more ammo around then yes, it’s a huge increase in weight.

      But S.F. guys and whatnot will likely get better use out of this.

  • Heartbreaker

    This in 5.56 paired with the XM556 microgun.

    • SP mclaughlin

      There’s an American version of this already, not sure if its in 5.56 though.

      • Avery

        Tyr Tactical has their Huron-MICO Machine Gunners Assault Pack which was built around the FN SAW and the various versions of it in use by special forces. It’s 7.62 or 5.56.

        • James

          Yes, for a mere pittance of $3,995.95 you too CAN’T own the MICO Quiver of Death. Lmfao…never seen a freakin backpack that’s “RESTRICTED: US GOVERNMENT SALES ONLY.” Yeah, cus many-a mass shootings have been carried out with a backpack full of linked rounds and belt fed rifles, right? Everybody should send an email to the president and CEO of Tyr Tactical thanking him for keeping us safe from his evil backpack. We can only hope other responsible backpack manufacturers follow suit with commonsense sales restrictions if other evil objects, such as IEDs, could be placed into their products. As a veteran and a FBI-background-checked civilian owner of a machine gun, I find this slightly (read: extremely) insulting in case my above sarcasm wasn’t readily apparent enough…oh, and the price is pretty insulting too since you can make one for under $200 with an ALICE pack frame, ammo can, some flex chute and hardware to put it together like a buddy did for his M60E4. Good luck with that though Tyr Tactical…

  • User

    Heavy, cumbersome balance, a PAIN to clear any mailfunctions.

    • Major Tom

      “a PAIN to clear any mailfunctions”

      Then stop sending postage through them. :3

      • User

        Oh sry im not Murican. Malfunction*

        • Major Tom

          Relax man it’s just making fun puns off a typo.

  • Pete – TFB Writer

    Side note – What’s the silver break on the AKM? Normal linear compensator/break or something special?

    • iksnilol

      Looks like a suppressor to me.

    • Anon

      Could be one of those muzzle break blast shield things, looks a bit too short for a supressor.

  • RSG

    I wonder what the total weight is, fully loaded with 550 rounds.

  • Ark

    Yeah but can I use it with my Mosin?

    • CoCo

      If you find a way to link 5 round stripper clips, probably.

    • .45

      I rarely say this, but OMG! That would be awesome.

    • Sledgecrowbar

      Fifteen years later:


  • TheNotoriousIUD
  • Anomanom

    I see this being easier to work with (at least for righties) than the American version since the PK series feeds from the left and the feed chute doesn’t have to cross the body. But what do you do with the non-disintegrating feed belt? It seems like you’d trip on it after a bit.

    • Richard

      The belts drop off after 50 rounds.

    • LCON

      The American versions plural and at least for the Tyr mico they have a chute long enough to flip around for south paws

  • Anonymoose
  • jono102

    All good for fun on a range but about as practical as a bullet in the head.

    Its kind of the reverse argument to the IAR. Lets take something that’s already large, heavy and designed to be primarily used from a bipod. Make it heavier and more cumbersome and try to employ it like a rifle.

  • Minuteman

    I recall Army is/was experimenting with something similar.

    • jono102

      There’s clips on youtube of it in use with US ARmy guys. Even with an M249 the gunner looks like a beached whale.

    • Uniform223

      Iron man pack I think it was called. You can find pictures of it on Google. They messed around with it a few times in Afganistan.

  • 40mmCattleDog
  • 40mmCattleDog

    this in 5.56 connected to this:
    with a HUD and I will be set for life.

  • Polaritypictures Ken

    Brings up the argument about the M27 IAR, that machine gun(PKM) is HEAVY(16lbs) along with the weight of the Ammo Rig and Ammunition(25lbs for 440 rounds), imagine lugging that(41lbs +) for 6 hours. plus after the ammo is out who’s going to reload you, no one in the company is going to lug another can in addition to their load out? having less random rounds out in the field and more accuracy sounds better(+M27 IAR). The Mini gun option is ridiculous, same faults plus more rapid round loss.

    • Uniform223

      *rolls eyes* do you even know what you’re talking about? Do you even known what the role of the 240 or 249 is in a squad or platoon? Do know what “volume of fire” is?

      • Wow!

        I know right? It’s like people think the M249 is outdated or something. Hardly the case. It’s the same issue with the M60, current stocks are worn out and we need to replace them. We don’t need a whole new weapon system that doesn’t do the role better. M27 was basically the militarys way of sneaking in a request to get new carbines replace some of the craptastic worn out M16s we had.

      • L O

        Of coarse he knows what he is talking about, it’s in the booklet that came with his call of duty game.

    • iksnilol

      No offense, but the PKM is like one of the lightest MGs you can get. The M240 is like 5 kg more.

      • LCON

        true, even with the weight shavings of the latest versions of the M240 just barely match the older infantry versions of the PK. the the PKP is almost 2 pounds lighter then the Barret 240LW. of course the real kick in the ammo sack is that the pkp at 18 pounds empty is just 1 pound heavier than the unloaded M249.

        • iksnilol

          But that’s on your back, it doesn’t affect weapon handling. Besides, how much do you think the ammo carried otherwise would weigh ?

          • LCON

            Iksnilol I am Trying to agree with you. weapon weight wise development of systems like this is a very smart move especially for NATO spec weapons as the M240 and M249 are heavy compared to the PKP. Hence the US Versions the Army’s Ironman which does this for 7.62x51mm and the Tyr Mico that can be used for either 5.56x45Nato or 7.62×51 Nato.

    • Dotcoman

      Yeah. I’d have to start dating much larger women to hump that backpack for me, and maybe a second girlfriend to hump the spare barrels, etc.

    • Core

      I used to carry a full size M60 and gear on twelve hour roving watches. Yes I have spine damage, but it builds character.. I’m thinking this could be done by having another partner carry a support loadout while the dude with the backpack just carries armor, pack, and gun. 40-50 pounds is nothing compared to 70-80 pounds of peripheral gear. The MK46 is short and would reduce stress on lower back.

    • The Brigadier

      Yeah, but the hellfire you can lay down for hours is well worth the pain. I bet you’d get in shape lugging it around in a few weeks anyway.

  • Harry’s Holsters

    Aren’t there a couple companies experimenting with this? Under $600 seems like a really good price.

    • Sledgecrowbar

      The American version that came out I think early this year is something like four grand. That might be defense dollars, so about $400,000 in your taxes.

      • Wow!

        The gov is very loose with their money, so a lot of companies (even gov run, lol) charge way more than needed when they do win those coveted contracts. One great thing about Trump is that he isn’t just going to pay for whatever price people give him. I hope this changes the spending policies of the DOD, and maybe then all the money wasted will actually go to the guys who need it to buy the mandatory stuff, not fluff.

        • Jouhaa R

          Yeah because Trumps presidential post will include controlling what the DOD spends and not spends. xD That’s controlled by corrupted paper pusher within the DOD. Not even an army of lawyers would be able to control that corrupted spending bullshit.

          • Wow!

            Well without even being president he already got Boeing on board. The thing is that it isn’t so much that it is complex or hard to do, there just isn’t anyone who cares that has pull. Politicans want you to think the world is complex and impossible to fix without a lobby, but the truth is that all it takes is for someone to get off their ass.

  • .45

    Perfect for drivebys, start shooting three blocks away and stop three blocks after.

    • DIR911911 .

      . . . walks in the park , fussy dmv clerks . . .

  • Pete – TFB Writer

    Boom. Thanks HH.

    • Hrachya H

      Anytime ! 🙂

  • Sledgecrowbar

    Well, that blew my mind. Is this what they call Polish cavalry? /kidding

  • Anon. E Maus

    Needs a steadycam mount and smart-linking.

    And of course some explosive ammo.

  • Tim

    “Time to let Ol’ Painless’ out of the bag.”

  • georgesteele

    Seems to me back in 1957, Armalite’s George Sullivan was promoting a dual 250 round canister backpack for a belt-fed AR-10 (.308); the idea was that an attacking team could lay down a horrendous suppressive blanket of lead while maneuvering. Of course, we went a different way on rifle, and then on caliber. Wonder if it’s revivable on 5.56? 1000 round? Then convert the M4 into a flamethrower with a mouthful of lighter fluid spit across the barrel . . .

    Edit; I just spotted a link above to exactly that story. I remembered reading about it in Guns Magazine – sure enough, it’s in the March 1957 issue. Everything old is new again.

  • Blake

    But then what? You have a mile long section of empty belt hanging off the left side of the rifle?

  • Wow!

    As a handheld unit, it is silly, but I think mounted onto aircraft and a vehicle for the same purposes the current 7.62 model is used, a 5.56 model will work better in lighter loadouts, and more volume. Afterall, the purpose of the minigun is suppression, and all you need is to poke little holes in cover and people to get that job done.

  • L O

    Not sure why it would be available in the US when the majority of 54R is for the Mosins

  • Jakob Stagg

    When will the AR and AK versions be ready?

  • AMX

    But that would require … (shudder) … BATTERIES!

    Jokes aside, you bring up an interesting point – how *do* the loads on his joints compare to carrying the same weight in a normal backpack?
    They only mention how much weight is supported by the wheel – which is all nice and good when walking in a straight line on level ground, but doesn’t tell us anything about the effort required to maneuver the thing in more realistic terrain…