Re: ITW fastmag for AICS??
They will work with AICS mags with a modification. The fiction pads ride in the indentions on the sides of the ACIS mags. The friction pads inside the fastmag are set up for M14, M110 and PMags so they are too thin to grab the ACIS. A piece of bicycle intertube glued over the fiction pads adds enough thickness to grab the ACIS mags. Once modified, they work pretty good.
The tension bands around the outside are pretty tough. I highly doubt there would every be a problem with them.
Ken