HFC M92 Vertec Gas Blowback Airsoft Gun

take a look at the link. ok.
This magazine is very good in construction an efficiency, with a small detail. The upper part of the magazine is made of plastic and if you're not carefull it can easily break. it also helps when you warm the magazine after it gets cold from te gast while in use. it will give you an extra shot or two, or maube up to ten extra shots. The reason this happens is that warming the gas makes it spand more. I Strongly recommend buying more than one magazine. 3 stars