I have the Colt 1911 CO2 blowback pistol which I believe is manufactured by KWC. LINK: http://www.airsplat.com/Items/GP-PS-1911-CO2.htm This pistol is actually quite incredible, and I will tell you that this gun has 3" groupings at 75 ft and can hit bottles at 90ft (close to max range) 2 out of 3 times (Bottles are 10 inches tall, 3 inches wide). I have used legitimate measuring tape and tuned the hop up to the max, and cleaned all the inner parts. This kind of performance for a pistol is quite amazing (especially one with such a strong blowback!). Anyone wanting to buy a pistol should pick one up. At Airsplat it used to be $89, but now I see they've jacked the price up to $119. What's even more amazing is that it seems to be doing this with the stock manufactured materials and a seemingly wobbly hop/up - innerbarrel connection. This is the problem I've been wanting to fix for quite some time, but I can't seem to be able to open up the hop-up unit or access the inner barrel fully. If anyone has an answer to this, please reply. EDIT: I know the performance sounds like an exaggeration, but trust me, I have a steady hand and used a lot of concentrating power for these tests. They are truly legitimate and I don't feel like explaining in detail in a "professional manner". This is beside the point of course (although I did want to mention how extraordinary it is), and please reply if you know how to replace parts.