Well, if you feel like experimenting, you can just try them. But, keep in mind that they *should* strictly be kept as range-only play mags; for SHTF work, stick to USGIs. Mostly, with non-USGI mags, I found that its iffy as far as function. Some work, some don't. I would say try it first. If they work, ie feed correctly, drop free, don't jam, etc, then don't mess with it. But if they don't feed, generally some time tweaking the feed lips should help, and if they don't drop free, then some tweaking with the body should help.
Ghost