30-day limited warranty
Things I liked:Fills up quick and lasts for the entire clip.
Things I would have changed:Gas release valve is way too sensitive. Sometimes caused gun to fire when using the decocker on the pistol.
Things I liked:It's all metal which has a nice heft and feel to it. HI FLOW VALVE! That means increased FPS and blowback kick.
Things I would have changed:The price should be a little lower.
What others should know:Even though it is expensive for just one magazine, an extra mag in a battle is invaluable. If you just use your P99 for backyard shooting, I don't recommend it because of it's price tag.
Compatible with Walther P99 Blowback Airsoft Green Gas Magazine, 24-Shot