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Forum: MAC-10 Talk

Discussion relating to the M-10, M-11, and the rest of the MAC/RPB firearms family.

  1. Sticky Thread The official MAC picture thread

    Post'em here, lets see what you've got. I've changed it around once again, so one more picture to come soon.

    Started by bruh44‎, 01-08-2008 11:04 AM
    56 Pages
    1 2 3 4 5 6 7 8 9 ... 56
    • Replies: 1,105
    • Views: 1,150,877
    10-11-2020, 01:17 AM Go to last post
  2. Sticky Thread Web Sites...

    I cannot find the threads or my links to various web sites for MAC parts and conversion kits, like uppers for the M10/9... Could we please get a tacked thread listing the various places to find MAC stuff? :D

    Started by Energizer‎, 03-17-2006 03:48 PM
    4 Pages
    1 2 3 4
    • Replies: 60
    • Views: 180,317
    10-07-2017, 11:10 AM Go to last post
  3. Sticky Thread Use the SEARCH feature!

    Not to hinder discussions, but a good percentage of post are asking questions that have been covered several times before. I am just as lazy as the next guy so I get that it seems easier to post a question than to search for an answer, however using the search button will give you hours of reading...

    Started by chili17‎, 06-24-2010 05:09 PM
    • Replies: 11
    • Views: 53,116
    07-20-2017, 11:44 AM Go to last post
  1. What causes an out of battery discharge?

    Iíll have to get an upper checked out most likely as it had two OOBs in one drum mag. Maybe it is ammo or magazine related? A Suomi mag upper is what was being run. It was uneventful other than for smoke and a little more noise. I havenít encountered these issues before.

    Started by cjsoccer3‎, Yesterday 08:27 PM
    • Replies: 10
    • Views: 239
    Today, 09:35 PM Go to last post
  2. My home-modified M10 9mm magazines

    I have a friend who is a local military surplus guy. He found some unidentified trapezoidal 40rd 9mm magazines and I decided to try my hand at getting them to work in my Powder Springs M10 in 45 with a Lage MAX-10/9 mk2 upper. I used this standard magazine adapter and modified it a bit:...

    Started by big_johnson_92‎, Yesterday 01:46 AM
    • Replies: 8
    • Views: 223
    Today, 09:30 PM Go to last post
  3. Suomi Coffin Mags 2.0

    I have found a company that is willing to make the springs if we order enough to cover machine setup and down time for testing. They do ask for a deposit for the reasons mentioned above, but in the unlikely event the springs are not produced you will be refunded your money. Basically half up...

    Started by klyph12‎, 03-23-2018 10:34 AM
    19 Pages
    1 2 3 4 5 6 7 8 9 ... 19
    • Replies: 377
    • Views: 78,661
    Today, 07:16 PM Go to last post
  4. New Mac 10 owner! (9mm Police Model)

    I have just brought home my Mac 10 9mm Police model. It's my first machine gun. I got into the gun hobby a few years ago and I found myself taking guns apart to see what makes them tick. Machine guns have always amazed me since I was a kid. An associate of mine shared his Mac 10 .45 with me at the...

    Started by tollytime‎, 11-15-2020 07:50 PM
    3 Pages
    1 2 3
    • Replies: 43
    • Views: 1,267
    Yesterday, 04:58 AM Go to last post
  5. For Sionics Suppressor Owner's

    Old technology, but still works quite well. The suppressor is an original Powder Springs 9mm can. The original wipe assembly was crimped into the end cap. Since I bought this for shooting and not collecting (PLEASE don't high-jack my thread with a discussion of collecting/investing -vs- shooting)...

    Started by MacMan‎, 06-06-2007 11:28 AM
    4 Pages
    1 2 3 4
    • Replies: 76
    • Views: 60,879
    11-29-2020, 08:50 PM Go to last post
  6. pricing an M10 semi auto open bolt for an estate

    guys got an 81 series RPB semi auto M10 open bolt, with a shroud and a couple of Cobray marked mags, this is NOT a For Sale post, I believe its already spoken for just trying to help out an attorney friend price it for an Estate. old man owned since new, no box or anything, doesn't look beat up,...

    Started by rentprop1‎, 11-05-2020 06:18 PM
    2 Pages
    1 2
    • Replies: 38
    • Views: 1,145
    11-29-2020, 05:53 PM Go to last post
  7. Texas MAC-10

    Hello gentlemen, I'm currently in the process of purchasing a Mac-10. It's a Texas M10A1 in 45 with 9mm upper and mags. I've read in 2 articles that the Texas Mac's have a slower rate of fire (750 round per minute). Didn't know if anyone can verify this with actual experience/results. Thanks for...

    Started by AK74U‎, 11-27-2020 10:45 AM
    2 Pages
    1 2
    • Replies: 20
    • Views: 460
    11-29-2020, 05:34 PM Go to last post
  8. 50 round s31 zmags

    Straight out of RetroEngraving’s laboratory. Reworked feedlips and Suomi tab tig welded on. Going to test it and a reworked 30 Rounder at a sub gun match this weekend. Hand Cycled snap caps through and it was smooth as butter.

    Started by Offmarksman‎, 10-29-2020 11:37 PM
    2 Pages
    1 2
    • Replies: 38
    • Views: 1,728
    11-28-2020, 09:14 AM Go to last post
  9. 460 rowland mod for vmac 45 - blowback calculations help

    So im looking to purchase a vmac45 and to fire 45 super loaded to 460 rowland pressures. my idea to increase the bolt weight is such add a buffer tube adapter and extra long 8.75 buffer tube i would use strike industries ar10 flatwire spring in it i would use a 1.66 pound tungsten carbide rod...

    Started by Hannibalbarca‎, 11-01-2020 05:24 PM
    • Replies: 17
    • Views: 531
    11-25-2020, 08:36 PM Go to last post
  10. M11 small parts questions

    Hello, new to the forum doing a metal mag 380 pistol build and had some questions for more experienced guys as I was looking around It seems like the original 380 guns were way less supported than the 11/9 or something, I can find any part I want for an 11/9 but a lot of M11 parts seem unavailable...

    Started by notgoodwithnames‎, 11-24-2020 09:20 PM
    • Replies: 5
    • Views: 205
    11-25-2020, 08:30 AM Go to last post
  11. 30rd Z Mags in stock at Shockwave

    Just a heads up in case someone else was also looking.

    Started by Elnino‎, 11-10-2020 10:34 AM
    2 Pages
    1 2
    • Replies: 26
    • Views: 1,457
    11-25-2020, 03:04 AM Go to last post
  12. Unmodified M3 Mag Usage in MAC/RPB M10/45

    Did a bit of searching and found mention, but not really conclusive answer, so figured I'd make an account here and ask the experienced - I've got a MAC/RPB doublestamp M10/45 and just recently picked up a batch of 'new in the bag' M3 mags. Knowing something, somewhere would need to be...

    Started by tangoprime‎, 11-19-2020 06:37 PM
    • Replies: 17
    • Views: 505
    11-23-2020, 11:19 PM Go to last post
  13. The UltiMac, a modular Mac upper.

    From the old thread (, here's the info: I spent some time designing stuff, making stuff, then throwing away stuff. This is my current upper design, the UltiMac. The upper uses an...

    Started by theredneckengineer‎, 10-19-2019 10:17 AM
    34 Pages
    1 2 3 4 5 6 7 8 9 ... 34
    • Replies: 662
    • Views: 73,183
    11-23-2020, 01:20 PM Go to last post
  14. 12 ga upper for M-11/9 project

    In the tradition of this forum, if you can't find one, build one. I know a few others are interested so feel free to share ideas.. this will be an open thread, so if it works it will be a how to for the benefit of Mac owners everywhere.. I've had some ideas knocking around for a while- right now I...

    Started by rybread‎, 06-05-2017 04:00 PM
    29 Pages
    1 2 3 4 5 6 7 8 9 ... 29
    • Replies: 579
    • Views: 130,410
    11-22-2020, 09:16 PM Go to last post
  15. Looking for Stick Mags for the Max-31 Upper

    Howdy folks! I just took the plunge. Bought my first MG, a MAC-11 in .380. The seller told me about this place so I figured I would check it out. Seems like you guys are a wealth of information about these things. My plan is to get a MAX-31K upper since it's the .380, and since it's so short I...

    Started by DeathAndTaxStamps‎, 11-22-2020 01:38 AM
    • Replies: 4
    • Views: 293
    11-22-2020, 03:32 PM Go to last post
  16. Poll CFW M10/45 and M11/380 Slowfire Bolts

    Any interest in a CFW M10/45 and M11/380 slowfire bolts?

    Started by komodoj‎, 08-04-2015 12:44 PM
    17 Pages
    1 2 3 4 5 6 7 8 9 ... 17
    • Replies: 335
    • Views: 151,832
    11-21-2020, 01:31 PM Go to last post
  17. M11/9 underfolder stock?

    I found this underfolder stock at a gun show a while back and snatched it up. It's obviously for an M11/9 but there aren't any markings on it. It seems to be a high quality, nicely made unit. I can't find any information about it other than a picture or two from past sales on GB. Anyone know...

    Started by TheRadBaron‎, 11-17-2020 09:35 PM
    • Replies: 8
    • Views: 416
    11-19-2020, 11:04 AM Go to last post
  18. Moved: Magazine refinishing: Old Sten Mags

    Started by kingjamez‎, 11-18-2020 09:16 PM
    • Replies: -
    • Views: -
    11-19-2020, 08:48 AM Go to last post
  19. ? for Max-11/15 Reloaders

    For those of you who are reloading for Max-11/15 open bolt rifle cartridges, is there any difference in the condition of fired cases from an open bolt and closed bolt system? On MACs, the fired cases can have 360 degree Glock bulge. Are rifle cases the same from an OB system? Thanks.

    Started by strobro32‎, 11-17-2020 01:22 PM
    • Replies: 8
    • Views: 276
    11-17-2020, 11:43 PM Go to last post
  20. Exclamation broken link replacement

    Hi there, We noticed an article you posted about Shockwave ZMAG has a broken link that goes to a non-existent Shockwave page. It's the link that says "Shockwave Technologies" in this article: Please update it with the following link as soon as you get a...

    Started by shockwave‎, 11-09-2020 01:51 PM
    m-11/9, shockwave, shockwave technologies, zmag
    • Replies: 18
    • Views: 677
    11-16-2020, 04:35 PM Go to last post
  21. UZI conversions for sale???

    Is it me or do the UZI converted M 10's never come up for sale? I haven't been in the MG world long maybe 3-4 years but I have only seen 1 for sale. Was kinda curious what the current market value is and why I never see them.

    Started by sleepy‎, 12-03-2016 08:13 PM
    • Replies: 3
    • Views: 2,384
    11-16-2020, 08:54 AM Go to last post
  22. Want to lean more about old mac accessories

    My mac came with a few oddities I've never been able to find again to learn about. The primary one I have questions about is the charging handle/optic mount. The previous owner hacked off the rear sight and installed an AR style charging handle/pic rail thing. It clamps onto the gun with set...

    Started by Deerhurst‎, 11-10-2020 05:29 PM
    • Replies: 16
    • Views: 641
    11-15-2020, 01:30 AM Go to last post
  23. Help/Advice Lage Max-11 22

    My brother and I tested out his Max-11 22 conversion kit today. The results were not the best. He's a little bummed but knows some of these kits need minor tweaking. The problem is the rounds do not want to chamber all the way, and if they do the bolt doesn't have enough energy left to fire the...

    Started by KickStand‎, 03-16-2020 12:54 AM
    • Replies: 17
    • Views: 873
    11-13-2020, 03:47 PM Go to last post
  24. DUAL MAC UPPER project (DMAC/RR20)

    My 12 gauge upper project continues into its third year (so pretty much on schedule) and I grow restless. With all the capabilities Iíve developed on my other project, I felt like making something new- based on something old! Next in queue is a dual Mac upper. This went through a few...

    Started by rybread‎, 07-28-2020 07:10 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 107
    • Views: 5,923
    11-13-2020, 03:43 PM Go to last post
  25. Mk1 & .22lr Kit

    Last December I purchased a discontinued MK1 slowfire upper with a .22lr kit for the MK1. The 9mm MK1 is a perfect slowfire and Iíve loved it from the start. The .22kit has been nothing but trouble though. After trying 5 different kinds of ammo and a few different magazines, I finally got it...

    Started by scottMO‎, 11-09-2020 09:47 PM
    • Replies: 10
    • Views: 401
    11-12-2020, 07:17 PM Go to last post

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