Reddit strikes again! I was told a real Odin sidewinder will fill an epm1 no problem while a knockoff gave up about half way. Turns out they were right! : r/airsoft
Odin Innovations M12 Speed Loader Adapter
EMG Odin Innovations M12 Sidewinder Speed Loader with M12 Sound-Dampening Buffer (Color: Drama-Free Blue Special Edition)
ODIN INNOVATIONS M12 SIDEWINDER AIRSOFT SPEED LOADER - OD GREEN ::M12 SIDEWINDER ::SPEED LOADER ::OD GREEN - MiR Tactical