Hickock45 is my favorite channel on youtube. Informative, fun, and entertaining.
Fun stuff but annoying: thanks to the design of M-16, the gas system funnels ammonia gas straight into the shooter’s face thanks to the back pressure from the suppressor. Dang thing asphyxiates the firer, which makes aiming a problem.
Hickok45 is great. But, I always get a kick out of this video. Great photography.
http://www.youtube.com/watch?v=th_FpwgGc-E