This is a fully built Saw. All the internals have been upgraded. This shoots crazy fast. It is R Hopped, and also has great range. The auto winding mag will not feed if the gun is on an 11.1 Lipo, so I will include 3 7.4 Lipos. This will include the original parts to convert it back into an M249 Saw, but in it's currently configuration, it has the ChainSaw kit equipped. Any questions, feel free to ask. Will consider any trades, as long as it has similar value.