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Someone just bullpup'ed an AR-15 and succeeded.

Discussion in 'Rifle Country' started by Hammerhead6814, Nov 26, 2011.

  1. Hammerhead6814

    Hammerhead6814 Well-Known Member

    It's called the Longziz #1.

    I looked for another forum or post where there might be more information on this and came up short. He says there is an AR-15 lower in that thing. I'm guessing that is an AR-15 barrel.

    Hope he gets a range video up soon.

    EDIT: Found more on this thing! From what I can tell he is using a completely new upper and blot. The upper I understood from the beginning but the bolt intrigues me.
    Last edited: Nov 26, 2011
  2. P.B.Walsh

    P.B.Walsh Well-Known Member

    I sorta like the concept, love the inovations and the pursue of developments!
  3. Walkalong

    Walkalong Moderator

    Very cool.
  4. hammerklavier

    hammerklavier Well-Known Member

    Near as I could tell, he said the AR15 bolt will work for for left/right eject, but he had to make a new bolt to work with the gas piston/bullpup design.

    FIVETWOSEVEN Well-Known Member

    That is one really neat gun, I would love to have one. Reminds me of the FS2000.
  6. ants

    ants Well-Known Member

    Very cool. Talented fellow, this Aerostar. I found some old Chinese threads going back to 2005, where he intended to make a 'drop-in' chassis. You just drop your AR15 receiver into it, and go shooting. The current design uses it's own receiver and carrier design. The rails on the outside are from his 2005 project, adapted to the current design (actually, the rails are just a decorative shell over the top of his barreled action).

    As opposed to the Aug and FS2000 designs, he moves the AR buffer and spring to the FRONT of the receiver, around the barrel, and links it to the bolt carrier (from which he removes the back half, since it's not needed to push the buffer into the AR buffer tube).

    He has a lug on top of his carrier set up for gas piston operation, but I can't see where he installs the piston. Perhaps that's why he's just testing with a primed case rather than loaded ammo. He mentions that he has trouble getting it to work on live ammo.
  7. 68wj

    68wj Well-Known Member

    Waiting on an ArchAngel kit for the RRA PDS or Para AR next. :evil:
  8. JHenry

    JHenry Well-Known Member

    im not a fan of making a weapon bull-pub. F2000,s, p90s, AUG's etc are great but leave the ARs and the AKs alone
  9. 451 Detonics

    451 Detonics Well-Known Member

    I would have to say I have a tough time calling setting off a single blank round a "success". You want a bullpup AR buy a Bushmaster...close enough...
    Last edited: Nov 26, 2011
  10. alemonkey

    alemonkey Well-Known Member

    I'm not a fan of bullpups but that looks pretty neat.
  11. Maverick223

    Maverick223 Well-Known Member

    That is an interesting concept, but I think I'll stick to my M-17S...which looks to be pretty much what he's emulating to begin with (AR-15/18 bolt type + gas piston operation + bullpup configuration). I do wonder why on earth he would choose a long-stroke GP. :confused: That decision will probably have a negative impact on accuracy.

  12. kwelz

    kwelz Well-Known Member

    Success is a relative term.
  13. Hammerhead6814

    Hammerhead6814 Well-Known Member

    Ooookay. So let me re-phrase this as "... succeeded relative to other attempts to bullpup an AR-15". Like the one listed here. It's toward the end of the page titled "Ace AR Bullpup conversion".

    If this goes into production, it would beat the M17S is that is appears to accept standard AR-15 barrels (see the second link on the first page), magazines, and it can eject from either the left or right side which prevents brass from flying in your face.
  14. Maverick223

    Maverick223 Well-Known Member

    I seriously doubt it will beat the M17S where it counts...accuracy and reliability. From the looks of it, it won't be able to use unmodified AR barrels either, and the M17S already accepts standard AR-15 magazines of any type that I've tried (which is a long list). It's correct that you can't change the ejection pattern, but that's a minor issue IMO.

  15. 22lr

    22lr Well-Known Member

    To echo the sediments of posters above, I like the ingenuity, but id pass on it as a gun id actually buy.

    FIVETWOSEVEN Well-Known Member

  17. Maverick223

    Maverick223 Well-Known Member

    +1, new ideas is the stuff that breeds innovation and new designs. It doesn't matter if it works, or is a downright foolish idea, some good may come of it, so why not? I think there are enough ARs and AKs, and parts thereof, to cover one or two used in some crazy R&D experiment. I don't particularly care for it, but who knows the inventor may revise the design, or devise something entirely original, and come up with something revolutionary...for this reason I'm glad he's working on it. As unlikely as it is, he may become the next JMB.

  18. Zerodefect

    Zerodefect Well-Known Member


    Another Bullpup that ejects cases directly into my eye or ear. :banghead: That's great if you live in a dimension where everything moves right and the left side of cover deosn't exist. Ambi? Whuts that?

    Have any of these guys witnessed the FN F2000, P90, or Keltec RFB ejection???
  19. Maverick223

    Maverick223 Well-Known Member

    IMO ambi-ejection, in the form that swaps the bolt & ejection port to the other side (after all you're either rt. or lt. handed so why is there a need to switch...particularly when you have to disassemble the rifle and use different parts?), isn't a big deal, but I have to admit the downward and forward ejection designs (like those mentioned) sure are nifty.

  20. gunnutery

    gunnutery Well-Known Member

    Innovative bullpup using AR15 lower


    I did a quick search to make sure no one else posted this. It looks very well thought out and the ambidexrious issue is also addressed by a cheek piece that flips allowing the user to switch ejection from side to side without taking down the rifle.

    Appearantly the inventor is a member of ar15.com but I'm not a member there so I haven't looked for it.


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