Arcturus Variable Cap Silent 30/135 Round Mid-Cap Magazine for M4 / M16 Series Airsoft AEG Rifles

"These metal magazines are reliable. Bought them from an Airsoft Store, not directly from EVIKE or Acrturus.

Yet these magazines have proven to be reliable and have fed well into my AEG. I realise that due their stronger springs, they seem to hop more than the Polymer Arcterus M4 Mags. The metal shells are durable and help ensure that the BB housing within the shell remains unscaved. I've converted to using polymer mags due to reasons listed after this, so as a result I left them for weeks with BBs still inside them. This was before I realised that I needed to unload my magazines to preserve spring tension. So when I did decide to unload them, they ejected all 130 BBs with the same amount of force as the day I got them. Which demonstrated that not only they durable externally but internally.

These mags also don't come without some quirks. The magazines do have a bit of wiggle when inside a AEG, more than the Polymer Variants, but it does not affect performance of the AEG. Due to the free space to wiggle, they are able to drop when pressing the magazine release, which may help in quick reloads or in emergency situations. Due to the metal housing being full metal, you will probably have to bend the pins on the bottom of the magazine to reach the BB Housing to adjust BB capacity from 130 to 30 and vice versa.

Overall, these mags are reliable, durable, and affordable for what they can offer. They also provide a good asthetic to anyone's loadout.