I made a clip for the original box magazine of the Classic Army Stoner 96. The clip allows the internal reservoir ramp to stay at the lowest position while you fill up the box magazine with BBS. Is this necessary? No, but it sure has made filling the box magazine much easier and with less drama while in the setup area. This isn't something you're using in the middle of a bb sling fest.
Here is a little tip unrelated to this file. If your reservoir ramp stays jammed at the bottom position, like most of these stock mags do, open it up and lightly sand down the chamber walls until the ramp no longer sticks.
The author marked this model as their own original creation.