Things I liked: I used to be a KWA hater until I actually played with one myself, I haven't looked back since. I just got my new km4 cqb from pyramidair last week and it did not disappoint. The gun feels solid and performs amazing. I installed magpul externals and run an 11.1 lipo and has given me no problems or misfeeds yet. I would highly recommend this to new or veteran players alike. Worth every penny
Things I would have changed: Possibly a version wired to the buffer tube.
What others should know: Shoots 350 out of the box perfect for cqb fields