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Thread: The UltiMac, a modular Mac upper.

  1. #601
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    Quote Originally Posted by JohnFreeman View Post
    Only 11 different pieces in permutation!
    My assumption is that the original quote of "millions of combinations" is a bit of a intentional exaggeration, of course. =)
    However, I suppose that if you were to count not only magwells, but calibers, barrels, handguards, gas types (DI or piston), gas system length, etc etc.....then there are a large number of combinations of parts possible.
    Either way, I'm glad to see positive results out of the beta units that have thus far been released.

  2. #602
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    Quote Originally Posted by theredneckengineer View Post
    Just for grins, the M10 ‹berMac, takes DPMS AR10 mags, BCG, handguard, and 7.62x51 ammo.

    Attachment 35249
    You are making me sick? Now need to get a M10. Any plan to adapt this to the M11/9 for Magpul 308 mag?

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    Quote Originally Posted by theredneckengineer View Post
    My assumption is that the original quote of "millions of combinations" is a bit of a intentional exaggeration, of course. =)
    However, I suppose that if you were to count not only magwells, but calibers, barrels, handguards, gas types (DI or piston), gas system length, etc etc.....then there are a large number of combinations of parts possible.
    Either way, I'm glad to see positive results out of the beta units that have thus far been released.
    That is exactly what I meant. Think of all the number of calibers you can chamber an AR for, then there’s all the various mag well changes this will be able to take, then you have choices of all manner of different barrel lengths, gas systems, handguards, stocks, foregrips, optics. I realize some of these are relatively minor, but I’d bet on a whole there really WILL be millions of different configurations possible. Now that I’m vindicated, here’s one more w a shorty 5.56 and m203.

    https://m.youtube.com/watch?v=1iBsUpiPfDw

  4. #604
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    ^ challenger....I mailed a mac charging handle to Redneck. fyi. found it in my gear while cleaning up the other day.- Houston

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    Dude! Awesome!! Thanks. It doesn’t matter now, I already replaced it, b/c I just assumed it was long gone, but it’s easy to lose when that uppers off, so it definitely won’t hurt to have an extra. I really appreciate that.

  6. #606
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    Quote Originally Posted by challenger70rt View Post
    Love it!

    Quote Originally Posted by theredneckengineer View Post
    My assumption is that the original quote of "millions of combinations" is a bit of a intentional exaggeration
    I've heard that %93.8 of statistics are made up.

  7. #607
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    Quote Originally Posted by challenger70rt View Post
    That is exactly what I meant. Think of all the number of calibers you can chamber an AR for, then there’s all the various mag well changes this will be able to take, then you have choices of all manner of different barrel lengths, gas systems, handguards, stocks, foregrips, optics. I realize some of these are relatively minor, but I’d bet on a whole there really WILL be millions of different configurations possible. Now that I’m vindicated, here’s one more w a shorty 5.56 and m203.

    https://m.youtube.com/watch?v=1iBsUpiPfDw
    Curious about that combination of 12” m203 and 5.56 barrel length. Any noticeable blast/flash damage to the end of the m203 barrel?

  8. #608
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    Quote Originally Posted by geeko9mm View Post
    You are making me sick? Now need to get a M10. Any plan to adapt this to the M11/9 for Magpul 308 mag?
    I have not had time to take this any further than a solid model.
    There are no plans to make more than one of them for the M10 and no plans to make one for the M11 or M11/9.
    I have my hands full trying to get the final M11/9 and M11 prototype uppers machined and the last of my M10 beta uppers finished and test fired.

    However....
    I know of at least one 12 and/or 20 gauge roller delayed blowback M10 and m11/9 upper being designed right now, maybe it can be repurposed to 308 after they bring them to market?
    Last edited by theredneckengineer; 07-31-2020 at 04:27 PM. Reason: Clarification

  9. #609
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    Quote Originally Posted by challenger70rt View Post
    https://m.youtube.com/watch?v=iDibsJ4Om64

    Hereís some video clips Iíve taken edited together. This is all 5.56. I didnít have anyone around to video the cmmg, and havenít had a chance to run the 300 blk yet, other then a quick function check.



    What happened at the 59 second mark?

  10. #610
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    Quote Originally Posted by KickStand View Post
    What happened at the 59 second mark?
    I changed the rifles position, aimed at a different target, and finished off the mag while looking to see if my cheap tracers were indeed tracing.
    They were.

  11. #611
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    Quote Originally Posted by strobro32 View Post
    Love it!



    I've heard that %93.8 of statistics are made up.

    "Never believe everything you read on the internet"
    - Abe Lincoln (probably)

  12. #612
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    Quote Originally Posted by sparky923 View Post
    Curious about that combination of 12” m203 and 5.56 barrel length. Any noticeable blast/flash damage to the end of the m203 barrel?
    Actually, I was worried about that too, luckily it was just fine. I used a standard A2 birdcage without cuts on the bottom, and I think that helped divert blast away from the barrel of the 203.

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