"I have owned this gun for quite some time and I have been very pleased with the results.
The range, accuracy, ROF, and FPS on this gun is pretty good. Also, the FPS can be easily changed even by the inexperienced airsoft tech.
You biggest problem will probably be getting the barrel lined up properly, but with a little practice it is very easy to do and becomes second nature.
Another great thing about the gun is that it accepts a wide variety of battery sizes. It even easily accepts an M4 type nun-chuck battery. I have even seen people use LiPoly batteries with some awesome results.
Box magazines are easy to get and it also easily accepts most M4 magazines.
This gun is heavy, even if you use a sling of some type. It is definitely not for the weak armed, pasty handed types.
In short, the A&K M249 Para R-O-C-K-S !!!"