I know that AR mags of elver can fit on vanilla Mili mag using rifles
And Sniper mags can fit on most DMR and Snipers but it still lacks more compatibility such as its not compatible with Ekho
Shotgun shells used to fit on 12 gauge shotguns but not anymore this has to bring back along with Pistol mag
Pistol mags should fit on any sort of pistols and smg's but Yuri and Peacekeeper only fits Armadillo mag instead of Pistol Drum
No clue whether if Desert Falcon should fit on Sniper mag or Pistol mags
Pandiculator Drum should fit on Devil's Bane and Vonya
LMG box should fit on Dragonfang
And with this suggestion,i want Hellcat Tweak as remove its ADS recoil control buff and movement speed penalty and carry it to Armadillo Mag so in that way Armadillo magazine is different variant of ammo but still low caliber