MAG Sig Midcap Feeding Problems

[-Shifty-]

I have a friend who just purchased an ICS Sig 551 and some MAG brand midcaps for it, and the mags are having feeding problems. I had heard previously that these specific mags have had feeding problems with the ICS, and I passed the information along to him. Unfortunately he didn't listen...

So for any Sig owners who have run into this problem, any help would be fantastic. Thanks.

[Jewish Ninja]

Did he shave the top of the mags/ the mag catch area to make sure they lock in correctly? I had to do that (same setup) to get them to run correctly. I also lubed them up and taped the bottom to make sure the stopper didn't go flying out.

[-Shifty-]

He hasn't done anything yet (he's a Chinese exchange student and is feeling pretty lost). Could you PM me a picture and a brief idea of what you did so I can get it set for him?

[Jewish Ninja]

For shaving the mags, here's some pictures of what I did. I don't have an unmodded mag to compare it to, but it gives you an idea. I would start by shaving the top down a bit, then the mag catch area, then back to the top etc. until they seat just fine. I found it was best to alternate the areas I was shaving to ensure a snug fit. One mag I went whole hog on shaving the top which made it a bit loose.


Pictures are linked because they are HUGE
http://i206.photobucket.com/albums/bb24 ... G_5472.jpg
http://i206.photobucket.com/albums/bb24 ... G_5471.jpg
http://i206.photobucket.com/albums/bb24 ... G_5473.jpg