Quantcast
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

ProMag and AR problems?

Discussion in 'Rifle Country' started by MM1794, Mar 13, 2013.

Thread Status:
Not open for further replies.
  1. MM1794

    MM1794 Member

    Joined:
    Aug 27, 2010
    Messages:
    82
    Just got a brand new bushmaster xm15. Have metal mags that work perfectly. However, just bought a black polymer promag that worked fine at first but now won't even chamber a round. My bolt keeps getting stuck on the mag and I have to pull it out and the bolt slams forward. Again no other problems with other mags. AR is in perfect condition, took it apart, cleaned and everything.

    Any thoughts? Should I file down the back a little bit? It seems the bolt is catching on the back of the mag.

    EDIT: the round I was testing just smashed into the space below the chamber. I've figured out that the bolt is fine. It is smooth with no round in. But with a round it jams?
     
  2. SabbathWolf

    SabbathWolf member

    Joined:
    Oct 6, 2008
    Messages:
    1,086
    Location:
    Eastern Kansas
    Just say "NO" to Pro Mag anything.
    I don't know how else to say that without sounding rude.

    :(
     
  3. Robert

    Robert Moderator Staff Member

    Joined:
    Jun 7, 2006
    Messages:
    10,420
    Location:
    Texan by birth, in Colorado cause I hate humidity
    You can file on the mag but chances are something else will go wrong with it. Chuck it out and call it a learning experience.
     
  4. Fishbed77

    Fishbed77 Member

    Joined:
    Nov 23, 2010
    Messages:
    3,041
    Every Pro-Mag product I've ever seen is trash.

    Their whole business model is based on assuming uninformed consumers will buy their products based on the cheap price alone.
     
    Last edited: Mar 13, 2013
  5. W L Johnson

    W L Johnson Member

    Joined:
    Jun 16, 2008
    Messages:
    1,248
    Location:
    Kentucky
    Pro-Mag posts should be limited to only when someone actually has one that works worth a damn.
     
  6. mljdeckard

    mljdeckard Member

    Joined:
    Jun 5, 2006
    Messages:
    12,763
    Location:
    In a part of Utah that resembles Tattooine.
    My SKS promag works very well. I have never tried any of their AR mags.
     
  7. Jhass

    Jhass Member

    Joined:
    Feb 17, 2013
    Messages:
    22
    Location:
    Iowa
    Only load 25 or so rounds until you have it broken in.

    Pro mag is cheap but mine are usable after I left them fully loaded for a week or so.
     
  8. joeschmoe

    joeschmoe Member

    Joined:
    Dec 27, 2012
    Messages:
    1,291
    I use USGI only.
     
  9. mljdeckard

    mljdeckard Member

    Joined:
    Jun 5, 2006
    Messages:
    12,763
    Location:
    In a part of Utah that resembles Tattooine.
    I have plenty of G.I. mags, but I replaced the followers and springs in them. I mostly use pmags.
     
  10. MM1794

    MM1794 Member

    Joined:
    Aug 27, 2010
    Messages:
    82
    Wasn't aware of promags ****ty rep. This is my first AR and I've been an AK guy and their mags worked great for AKs... Ill load em up and let em sit and see what happens
     
  11. Ratshooter

    Ratshooter Member

    Joined:
    Sep 27, 2007
    Messages:
    2,341
    Location:
    Burleson,Texas
    I have nine 20 rounders for my mini-14 and they all work perfectly. Those are the only Pro-Mags I have ever bought. But don't get me started on USA Mags.:cuss:
     
  12. MM1794

    MM1794 Member

    Joined:
    Aug 27, 2010
    Messages:
    82
    folks on PAFOA.org advised me to keep bolt open then release with magazine in.

    the first round got slammed into the front of the receiver and actually SENT THE BULLET down into the propellant area of the cartridge... ***
     
  13. HOOfan_1

    HOOfan_1 Member

    Joined:
    Aug 11, 2010
    Messages:
    4,698
    Location:
    Virginia
    I went to three gun shops today looking to by an M&P 40 (they were either all gone or overpriced)

    The only AR mags I saw in stock where Pro-Mags for ~$20. Ruger packaged 30 round Pmags for $33 (that shop said the were trying to keep the pre-panic prices....um yeah, you only jacked up the price by $10...) and loose and used USGI Mags for $30 (again...yeah, you did jack up the price).

    There were tons of Pro-mags....people are obviously avoiding them like the plague
     
  14. MM1794

    MM1794 Member

    Joined:
    Aug 27, 2010
    Messages:
    82
    So promag is junk as I can see...

    Another issue; when I have a full mag or 3/4 full mag in my metal mag, I am getting the same type of problem yet not so severe... I think it may have been because I rode the bolt forward.
     
  15. SabbathWolf

    SabbathWolf member

    Joined:
    Oct 6, 2008
    Messages:
    1,086
    Location:
    Eastern Kansas
    Never ride a bolt carrier....ever.
    Pull it to the rear and just let it fly.
     
  16. joeschmoe

    joeschmoe Member

    Joined:
    Dec 27, 2012
    Messages:
    1,291
    There's a forward assist button too.
     
  17. briansmithwins

    briansmithwins Member

    Joined:
    Aug 1, 2005
    Messages:
    4,132
    There's nothing wrong with Promag that smashing it with a rock won't fix.

    Don't keep crappy mags.

    BSW
     
  18. justice06rr

    justice06rr Member

    Joined:
    Oct 7, 2011
    Messages:
    1,616
    Location:
    Florida
    I have one of the 42-round Promags but I fortunately bought prepanic for $13. I intended it for T&E, and sure enough it jams my AR's. I believe its their design; a video on Youtube suggested that you file down the back part of the mag behind the feed lips. I did that and it still jams.

    Now its just a cool looking paperweight. I posted it up for sale and no one has even posted any interest in it.
     
  19. Unka-Boo

    Unka-Boo Member

    Joined:
    Oct 27, 2012
    Messages:
    43
    Location:
    Milwaukie, OR

    C'mon, mine worked great for like two whole rounds....
     
  20. MM1794

    MM1794 Member

    Joined:
    Aug 27, 2010
    Messages:
    82
    figured out the problem.

    after taking the gun to a gunsmith he pointed out that the feed ramps of my upper are not M4-style; somebody slapped an M4 barrel on this Bushy and apparently the feed ramps won't feed non-military ammo (they are M16-style) since the neck of the shell on civvie ammo isn't crimped.

    Which... doesn't make any sense now that I think about it considering that my metal mags work.

    Going to buy a new upper w/ barrel and BCG assembly in the near future.
     
  21. HOOfan_1

    HOOfan_1 Member

    Joined:
    Aug 11, 2010
    Messages:
    4,698
    Location:
    Virginia
    No, that doesn't make sense...because if the barrel extension has M4 feed ramps, it should work fine whether or not the upper has them....rifle feed ramps on a barrel extension, might not work with an upper which has them though.....

    [​IMG]
     
  22. MM1794

    MM1794 Member

    Joined:
    Aug 27, 2010
    Messages:
    82
    bottom right is exactly what I have.. maybe they or I explained it incorrectly.

    So an M4 upper would do the trick?
     
  23. HOOfan_1

    HOOfan_1 Member

    Joined:
    Aug 11, 2010
    Messages:
    4,698
    Location:
    Virginia
    Probably not, as the picture shows...the bottom right should work fine.....throwing away your promag would probably do the trick though
     
  24. MM1794

    MM1794 Member

    Joined:
    Aug 27, 2010
    Messages:
    82
    will have to take another look
     
  25. TheLostOtter

    TheLostOtter Member

    Joined:
    Sep 7, 2011
    Messages:
    23
    If your other mags work and the pro-mag doesn't, that should tell you something. Just use your other mags, nothing is wrong with your rifle.
     
Thread Status:
Not open for further replies.

Share This Page