One thing to note, since switching over to gas, I've had to upgrade my tool set, as what I had was woefully inadequate. I find that working on my gas weapons is much more satisfying. While the internals on my AEG's are a complete mystery to me, I quickly learned that I can dissassemble my GBBR's with complete confidence. Its hard to mess things up when you're putting a gas gun back together. And as many here have stated, the realsitic operation and firing, for me, is totally worth it. It requires a much different strategy, where victory can't be acheived through overwhelming firepower. I find it can make you a better player in general.
Primary: KWA LM4 PTR, Classic Army LWRC M6 A2, Classic Army G36E, AGM/Javelin MP44.
Secondary: KWA Mk. 4 1911, KWA Mac 11, Skeleton Sidearms 8" .357 revolver.