So i have this old Echo 1 m16. It was my first gun so I cannot bare to part with it. So i was thinking hey I don't have an LMG I should turn it into one. But I don't really want to just throw a drum mag and some 13:1s in it and call it good. Cause God knows I would hear about it! So any ideas? I was playing with the idea of making it a little more like an m27.