Hello,

On the Magpul M3 threads it has been mentioned there is a bit of a fitment issue with the M3 in a FFL.

I wanted to start a thread to gather information on this issue, and hopefully, end up with a tutorial how to modify the mag in order to get proper fitment for 100% function.

Here are some of the posts on the topic:

https://www.m4carbine.net/showpost.p...9&postcount=27
https://www.m4carbine.net/showpost.p...&postcount=124
https://www.m4carbine.net/showpost.p...&postcount=164

Hopefully we can get some first hand experience and instructions soon.

Thanks,

-john