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Posted: 10/28/2011 5:50:29 PM EDT
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I posted this in GB without any responses, so I looked and found this section. I'm re-posting and appreciate any help.
I'm somewhat new to AR-15's. I have many magazines (C-Products 20 and 30 round) that I have bought over the past two years, but not tried to use until today. Most (10 out of 19 so far) will not feed the round (PMC Bronze 223) properly and it seems to me that the edge of the casing is impacting/hitting the front edge of the magazine just enough to cause a FTF malfunction/jam. The other CP magazines that do work fine, clearly look like the bullet is angled slightly more upward toward the tip and when you push them forward by hand they do not it the edge of the magazine. If you push the round forward with your fingers on the ones that jam, the case edge (where the case and bullet meet) hits the magazines and stops the round from moving forward. These jams can occur if I load full or short loads in the magazines. I cannot send them back, because I don't recall where I bought them. So, do I file the front edge of the magazine down slightly? Or is there another suggestion as to what may be happening? (or am I making a mistaken as to a possible defect?) I cannot post pics. |
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Quoted: The only C-Prods I own are 5.45 mags for my ARs.It seems Cprod had a lot of issues but were trying to make things right with people. But then they went out of business so there is no hope of a refund. Might as well try to fix them yourself. #1.) I managed to get a few working better by *gently* adjusting the feed lips just a little. That worked well in conjunction with #2. #2.) Others I smoothed out the tack welds on the front and back spine so the follower could slide more easily. #3.) There were two that I just filed the forward upper edge just a little to keep the bullet from whacking it on the way out. And I tried a squirt down the inside with some aerosol teflon lube. I believe some of them are a lot better, some a little better, and none that I was careful with are worse. |
| You might also take a look at the springs in the mags that don't work. A friend of mine bought about 30 mags from them and had all kinds of feed problems with half of them. He pulled the mag springs and found that on the bad mags they were 2 or 3 coils shorter than the working mags. Bought some springs from Brownells and they're back in business. |
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Sad predicament to be in OP. I can understand and sorry it seems you got a not-so-up-to-par batch of CP's. I'd do what Kaos suggests, can't hurt. So far of the 100's new CP's I got just about a year ago, first couple dozen have been flawless with both brass and steel cased ammo. But I got way too many to test and far too little time, $$, and ammo. I've inspected each one but they look good. I will keep a look out for what you are seeing, but it sounds like a simple fix, an easy one if I have a good file or grinder. Posted Via AR15.Com Mobile |
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Thanks everyone. I will try to file them down a little and see what happens.
As a side note, I've had these new mags a long time w/o trying them, and if the SHTF and I had not discovered this problem, it would have ruined my day. Lessons learned include: 1. Putting ALL my 'eggs' in one mag manufacturer was a mistake. I should have known better and used various manufacturers who's current product is not in question. 2. An AR-15 is only as reliable as it's weakest component. 3. Whether it's an AR, magazines, or a new BBQ grill, you better try it out soon after purchasing. 4. My complacency bit me in the ass. |
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