These are mid-cap magazine adapters for the popular ODIN Innovations M12 Speed Loader and all its copies and clones.
Designed and 3D Printed to order in UK using Filamentive Recycled PLA Tough , a plant based filament with qualities similar to ABS.The ODIN adapters features a design that locks into the M12 speed loader, as well as a spring-loaded mag-catch, BB-stopping design to prevent any ammo from being wasted and a replaceable nozzle (that can be found on Thingiverse )
Speed loader adapters are compatible with Odin M12 Sidewinder, CCCP Cyclone M4 Speedloader, Valken Max Reloader, Nuprol Speedloader, Dragon Pro Speedloader and many others.