I designed these so I could keep ammo on my Savage Rascal. There's 1 Mlok version and 2 flat backed versions that are designed to be used with adhesive backed velcro. Once you use all the ammo from one, just pull a fresh one from your pocket swap them out.
Can be downloaded here: https://www.thingiverse.com/thing:6091010
Can be downloaded here: https://www.thingiverse.com/thing:6091010

