Firepower Metal 190rd Mid-Cap Magazine for M4/M16 Series Airsoft AEG Rifles (Package: Set of 5)

"The five I got hold about 130 rounds each not 190. I have been doing the usual stuff to get them up to 190 but it's not working. That said, other than the moderate pellet count they are decent mags.

"I wanted to like these mags. They look and feel great. They don't fit in any of my guns. They don't fit my CYMA XM177E1, they don't fit in my JG MK12SPR, they don't fit in my G&P Type 91, and they don't fit in my DE UTR556. They also have a very stiff spring and do not feed reliably. I brought these mags to a game recently as backups for some of my team, and they didn't fit in any of their guns either. It's a shame for the price and quality of the externals, but they just don't work.