AR's kick?
Really?
(Color added for clarity)
This discussion reminded me of something ... True story ... NRA Certified Firearms Instructor told a class that the reason the muzzle of the gun goes up is because hot gases tend to rise.
They were called DIs in the army (among other things we called them)My Dad told me the same story... Must have been a popular thing for the Drill Sergeants in that era... What was a DI doing @ Ft. Knox? Did he get lost going between Parris Island and MCRD San Diego?
AR's kick?
Really?
(Color added for clarity)