AR mag question

Discussion in 'The Pre-Ban Forum' started by 45nut, Mar 23, 2010.

  1. 45nut

    45nut Active Member

    Joined:
    Jul 19, 2006
    Messages:
    3,455
    Location:
    Dallas, TX
    I have an AR-15 High Standard M-4 and I am having a problem seating a new magazine when the bolt is closed. It will not seat and lock in the closed position. If I open the bolt everything works fine. Is this normal or do I have a problem?
  2. USMCSpeedy

    USMCSpeedy Member

    Joined:
    Jan 22, 2009
    Messages:
    679
    Location:
    Minnesota
    What brand of mag are you using? Some of the cheaper mags can cause problems if you get a bad one.
  3. 45nut

    45nut Active Member

    Joined:
    Jul 19, 2006
    Messages:
    3,455
    Location:
    Dallas, TX
    Used military mags for the most part. I'll have to check for the brand name.
  4. USMCSpeedy

    USMCSpeedy Member

    Joined:
    Jan 22, 2009
    Messages:
    679
    Location:
    Minnesota
    I have a couple differnt brands and have run into a few problems with ones from C Products and even Colt mags. I have a couple AR Stoner mags that have been very good for me. Others here may be able to give some others that they've had good luck with.
  5. JLA

    JLA Well-Known Member

    Joined:
    Feb 26, 2007
    Messages:
    18,236
    Location:
    Heart Of Texas
    Its supposed to be tough with the bolt closed, especially with a loaded mag. essentially you are forcing the compressed spring about another 1/8th to 1/4 inch down before the mag locks into place. I always lock the bolt open, insert mag and drop the bolt with the release because sometimes i will put a loaded mag in and charge the rifle to have the mag fall out because it didnt lock into place and i thought it did... I use magpul p-mag 20 rd mags. they are the best in the west IMO;)
  6. muddober

    muddober Active Member

    Joined:
    Sep 19, 2008
    Messages:
    1,447
    The gun was designed to take a full magazine with the bolt open and not closed. If you put one less cartridge in the magazine it will probably solve your problem.

    Ron
  7. new308handloader

    new308handloader New Member

    Joined:
    Jan 11, 2009
    Messages:
    535
    Location:
    Maryville, TN
    Take one round out of the 30 round mag (with 29 loaded) and try again....that brand of mag may be too tight with a full 30.
  8. 45nut

    45nut Active Member

    Joined:
    Jul 19, 2006
    Messages:
    3,455
    Location:
    Dallas, TX
    I load all my mags 1 or 2 rounds short as a general rule. I tried it again last night and did it more gently and it clicked in just fine.

    Thanks for the info on proper procedure. I thought it was supposed to be loaded with the bolt locked open. Makes sense to me.
  9. JLA

    JLA Well-Known Member

    Joined:
    Feb 26, 2007
    Messages:
    18,236
    Location:
    Heart Of Texas
    dont forget to bang the mag against your 'cover' before slamming it home and dropping the bolt. Helps keep the commies dead and the sand on the ground where it belongs;)
  10. Dirty

    Dirty New Member

    Joined:
    Jun 12, 2011
    Messages:
    5
    I personally have fallen quite in love with PMAGs, as have all my guys. On the upside, they're getting much more inexpensive as time marches on. I used to be quite weary of polymer mags, but Magpul PMAGs have stood up to everything we've put em thru, so I'll back em all day.
Similar Threads
Forum Title Date
The Pre-Ban Forum Probably a much asked question-Mak 90 Jan 25, 2013
The Pre-Ban Forum ar15 question? Dec 25, 2011
The Pre-Ban Forum M1a question May 17, 2011
The Pre-Ban Forum Upper Question Nov 9, 2009
The Pre-Ban Forum <<AR newbie question alert>> Closest to a 'real' AR Nov 18, 2007