Why does my mag double-feed?

just lose the mag- I've had a few of those over the years, and when you try to bend it into shape with pliers or whatever, it develops longitudinal cracks along the base of the lip, if it doesn't break right away- just poor manufacturing
 
t-star said:
just lose the mag- I've had a few of those over the years, and when you try to bend it into shape with pliers or whatever, it develops longitudinal cracks along the base of the lip, if it doesn't break right away- just poor manufacturing
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The mags were fine, they only started doing this recently.
Chucking it is just silly talk. It's only steel, if it cracks I simply tack weld, grind and polish it flush and it's good as new.
 
If you do a google search for M14 magazine dimensional drawing you will find one.
Like tried 3 different KCI magazines which were all out of spec then gave up.
 
you didn't tell us it had a "history"- I assumed it was doing that from the get-go- now that puts a different light on things- maybe, if you can, change out the spring first,( springs are notoriously hard to come by) then just spend the 50 or whatever( the real good Chinese mags used to be around 35) and get a new one- personally, i'd just go for new , but then I haven't time to spend on bending and welding- in the field, any mag that acts like that is just thrown away- even at the armourer level- the question is can you get the floorplate off?.
 
Sounds like the feed lips were not heat treated and have bent outward over time and use. If that's the case just bend them back down. If they're malleable enough to bend out you should be able to bend them back without cracks
 
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