Unfortunately while these are very cheap and can feed bbs very fast into a magazine, one wrong move and bbs can get jambed into the feed ramps very easily and result in having to disassemble it to clear or may even damage the units leading to further damage. Maybe invest in something more robust if youre going to be packing a lot of mags!

Received both yesterday they come individual packaged and each had a wide rectangle mouth adapter included. Each holds 100, 6mm BB’s! I bought these because in the description they've pictured what looks like the narrow cone shaped adapters I need. I’m trying to avoid the big square ones.SUPRISE! they’re the really big rectangle versions and you just cannot tell from the side. The loaders both work well ,one a bit better than the other in terms of jamming and not spitting smooth. The other…