MAG brand midcaps for SIG 552 splitting at top

[TheYellowDart]

I recently bought four brand new MAG brand 100 round midcaps for my SIG SG 552. Noticed in my first game with them that they started coming apart at the top as I filled them with bbs. I couldn't fill them all the way without the two halves of the mag splitting apart.

Is this a common issue with these mags?
I'm considering using epoxy or modeling cement to glue the halves together, but I'm worried about gunking up the feed channel or spring.
Any ideas?

[Styrak]

Just put it around the top and along the sides near the top, skipping the BB area and release obviously. It won't gunk anything up.

[Kozzie]

I had the same problem with mine, what you suggested should help. I just try not to jam mine full. They say 120 rds, but it's more like 100-110. It's easy to know when to stop filling since you can see the bb's inside. If you're going to run two clipped together it's a good idea to wrap them in some tape. They do feed quite well and are otherwise good mags.

[Styrak]

Something else you can do is add tape or something similar around the whole thing so it keeps them tight.

[BioRage]

Think that's just the nature of MAG mag's. Even the M4 Mags are like that.

Make sure you drop a drop of silicone oil, work it in, and break in the mags. Don't over fill them or they will split.