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Posted: 4/23/2009 8:25:19 PM EDT
| Few weeks back I bought 7 surplus mags that were covered in cosmoline, steel with black followers. I was getting some malfs when using them at the range for the first time so I replaced the black followers with some new magpul anti tilt followers because I heard the black ones were crap. Now just cycling a few round through the rifle I noticed that it seems like the bolt is getting hung up on the feed lips. After looking at the feed lips they are getting a little chewed up. Most of my mags have been well used is this normal for new mags or should I sand the feed lips down a bit? I am handy with a dremel/belt sander/sand paper. Being that I am in a ban state pre ban 30 rounders are hard to come by, I really want to make these work. |
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Out of curiosity, what type of 'surplus mags' are they? Did they have the 'Made in England' stickers on them, or some other form of marking? They aren't the old generic USA or National brand mags, are they?
As for the feedlips, I have smoothed a few down with ultrafine sandpaper before that had rough finishing... this was mainly on the inside edges and not much had to be taken off to get them to run. Do you have any pics to show where you think the bolt is hanging up on them? |
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I forget what country they were, but the dealer told me they were from some country other than US, but no markings or anything about england.
I will get some pics up of where they are getting hung later. But it is very obvious that it is though, on a few of the the bolt has "peeled" back a bit of the metal. |
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I forget what country they were, but the dealer told me they were from some country other than US, but no markings or anything about england. I will get some pics up of where they are getting hung later. But it is very obvious that it is though, on a few of the the bolt has "peeled" back a bit of the metal. be careful not to let them damage your bolt. |
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The magazine catch hole was stamped too low your your rifle... Take a file, and SLOWLY file the top of the notch. This will cause the magazine to lock in lower.... thus the feed lips will not interfere. For range use only. Do they have any marking at all? Sounds like cheap, aftermarket magazines.... Hope you didn't get ripped off. |
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The magazine catch hole was stamped too low your your rifle... Thats fucking gay, I need some reliable 30 rounders. Check the Equipment Exchange, there are usually good deals to be had on pre-ban USGI mags |
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I just checked all of them again, and it seems like the catch hole was cut too low only on two of them. I numbered them all as I checked them, and the ones that appeared to be good would hand cycle rounds without any problems. I could put them in the magwell with 28 rounds in the mag on a closed bolt. With 28 rounds in them they would cycle the top round from both a closed bolt and when the bolt was locked back. I think these five are good to go. I will check them futher next time I get the the range. The other two I will try to file the catch hole, and reserve these for practice only. Thanks for the help guys.
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Quoted: Quoted: The magazine catch hole was stamped too low your your rifle... Thats fucking gay, I need some reliable 30 rounders. Let me clarify this, since my original comment obviously has major problems. Edit: I intended to say... "The magazine catch hole was stamped too low for your rifle." It is unlikely this is the fault of your rifle (although, unless you try some other magazines, it cannot completely be ruled out). It is probable they are stamped too low for everyone rifle. This is most likely a flaw in the magazine manufacture. There are a lot of good magazines out there... I will name a few. D&H CProducts, both aluminum and stainless NHMTG OKay Colt Centers (some people have issues with drop free) FN Adventure Line Cammenga EZ-Mag Lancer L5 MagPul PMag MagPul MagLevel PMag Tango Down ARC Fusil-USA These are all good magazines... not in any particular order. They will all work, some have advantages over others for some people. Mostly, it is what you like. Nevermind, you're in New York. Most of these are off limits. Go with USGI.... I like FN, OKay, and Adventure Line the most.... |
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Like I said before, it seems that 5 of the seven work fine. Is it possible that only two of these mags out of the batch had their catch holes stamped too low? Yep... they could have come off of a different press or out of a different batch. Glad to see that at least 5 are good to go. Even if you go the route of opening the bolt catch hole up some, still take the time to smooth down those feedlips on those 2 - especially where the bolt was grinding against them. Less friction is good... 
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Quoted: Quoted: Like I said before, it seems that 5 of the seven work fine. Is it possible that only two of these mags out of the batch had their catch holes stamped too low? Yep... they could have come off of a different press or out of a different batch. Glad to see that at least 5 are good to go. Even if you go the route of opening the bolt catch hole up some, still take the time to smooth down those feedlips on those 2 - especially where the bolt was grinding against them. Less friction is good... I would like to say, though, that you want to take as little material as possible from the feed lips.... it will result in the same scenario as feed lip creep.... you'll get double feeds. |
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Sounds good, when I get some more time I'll open up the catch holes and take a little sandpaper to the feedlips.
Numbering the mags was a good move, I think before the two crappy ones kept popping up, making things seem they were a lot worse. Thanks for the help, I will let you guys know how the other 2 mags go. |
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