The Odin Innovations M12 Sidewinder BBs Speed Loader replicates the outlook of the real steel version but this Airsoft replica is an awesome addition to speed loaders. It fits into double magazine pouches and holds 1600 rounds. It is also very easy to use, just insert your M4 magazine and crank away. The great this is that Z Shot are releasing CAD files of for the AK, G36 and MP5 magazine adapters so if you have your own 3D printer, you can make your own! Odin Innovations M12 Sidewinder BBs Speed Loader - Smoke Grey