For: CYMA 400rd M14 High Capacity AEG MagazineProduct Information:
Good ol' Cyma mags. These are the ones that come with the M14s (duh), but they hold a lot, they're all metal, feed great, and you can wind them on the sides with a butterfly winder.
400 rounds, give or take.
The trap door is huge, you can just pour BBs out of a bag into it, no problem
Really cheap mags
Better than the AGM M14 mags, those suck ass.
They could hold a bit more.