mag problem

doubletap78

doubletap78

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So I was out at the range the other day and used 5 brand new p-mags,and the mags would not stay in the well unless the bolt was locked back, Loaded or unloaded. It would not work on neither my rock River, vltor or Larue. I noticed later that th Rivet had worn abit, are those Rivets known to do that as in not letting the mag stay in the well unless Bolt is pulled back?.
 
Had the same issue but it was because the follower didnt have room to budge when fully loaded, do you have the problem with empty mags? Anyways I bought CAA mags from Atrs and no more problems.
 
Kanwar88 said:
Had the same issue but it was because the follower didnt have room to budge when fully loaded, do you have the problem with empty mags? Anyways I bought CAA mags from Atrs and no more problems.
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Yes, this is actually normal in some cases. It's due to a tight pin job, not allowing the mag to lock in when full.
You may notice that if you give the mag a good whack on the bottom, it will lock in, but it'll be so tight, it could be difficult to rack the bolt.

It's not known to be a very big deal up here, cause at 5 rounds, tactical reloads are kind of . . . pointless. At 5 rounds, you shoot till empty, pop in a new mag, whack the release, and you're off.


The ironic thing about all AR mags up here, is even tho' the QC on the mag itself may be excellent, the QC on the pin job, not so much.
Any serious AR shooter tends to have a rivet gun in their toolkit for this reason.
 
Conte said:
Yes, this is actually normal in some cases. It's due to a tight pin job, not allowing the mag to lock in when full.
You may notice that if you give the mag a good whack on the bottom, it will lock in, but it'll be so tight, it could be difficult to rack the bolt.

It's not known to be a very big deal up here, cause at 5 rounds, tactical reloads are kind of . . . pointless. At 5 rounds, you shoot till empty, pop in a new mag, whack the release, and you're off.


The ironic thing about all AR mags up here, is even tho' the QC on the mag itself may be excellent, the QC on the pin job, not so much.
Any serious AR shooter tends to have a rivet gun in their toolkit for this reason.
Click to expand...


Good to know. You know where I can get a rivet kit?
 
It's a common hardware store item. I think I got mine from Home Hardware.

Sadly there are few options to open up the capacity of a mag that is pinned too tight. You'd have to get really creative, or be willing to drill another hole on the other side of the mag.

If you can get in the mag and find a way to bend the rivet downwards, you could probably add a bit of relief without being able to get a 6th in. It's easier to bend it up then down tho'.
Otherwise, you could consider carefully filing away at the bottom of the follower where it contacts the mag to add the relief. This can become a long and meticulous process. Take too much off and your mag is toast. To be honest, I've never bothered. Like I said, you typically just shoot till empty at which point your mag will seat fine.

It's especially tricky because, depending on the mag, by the time you get it fitted with enough relief to seat on a closed bolt, you sometimes have enough relief that a 6th round can be forced in.


What most shooters keep the rivet kit around for, is to countersink the rivet. You drill it out, then with a drill bit the same size as the rivet head, you carefully drill a slot for the head to fit in.
You have to run the drill in REVERSE. If you run it forward the bit will bite a hole right thru' your mag faster then your reflexes can react. Some people will use a drill press to have better control, but I don't have one of those machines.

Once you have a slot that lets the rivet head sit flush, you pop it in and you're done.
 
Conte said:
Yes, this is actually normal in some cases. It's due to a tight pin job, not allowing the mag to lock in when full.
You may notice that if you give the mag a good whack on the bottom, it will lock in, but it'll be so tight, it could be difficult to rack the bolt.

It's not known to be a very big deal up here, cause at 5 rounds, tactical reloads are kind of . . . pointless. At 5 rounds, you shoot till empty, pop in a new mag, whack the release, and you're off.


The ironic thing about all AR mags up here, is even tho' the QC on the mag itself may be excellent, the QC on the pin job, not so much.
Any serious AR shooter tends to have a rivet gun in their toolkit for this reason.
Click to expand...
I don't mean to go off topic but I disagree with not needing to reload with closed bolt, or tactical reload. In tac rifle competitions where targets are moving you need to have a full mag before engaging can't reload in the middle as once the targets go behind cover they don't come back. Sadly I lost alot of points due to this issue at my last match.
 
Kanwar88 said:
I don't mean to go off topic but I disagree with not needing to reload with closed bolt, or tactical reload. In tac rifle competitions where targets are moving you need to have a full mag before engaging can't reload in the middle as once the targets go behind cover they don't come back. Sadly I lost alot of points due to this issue at my last match.
Click to expand...

Good point. Never shot competition. I run drills and what not, but I pretty much just set them for 5 round engagements.

Out of curiosity. Have you had to modify mags to make sure they allow for tac reloads ?
 
If a mag won't lock into your rifle when full or empty it is broken and needs to be fixed.
Bolt forward or rear it should lock in with a minimum of effort.

Get out to some competitions it will drive your shooting far more than playing with yourself ever will.
 
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