Im kind of shocked at the tenacity of folks to argue against military veterans about whether the AR15 is more "combat oriented" and "deadly".
Of course it is.
Any rifle with a pistol grip loses accuracy in exchange for ready time. The angle of the wrist just makes it so much easier to fire while moving and standing. It's the ability to get your hand around the whole thing, and the perpendicularly of the wrist in the motion.
Combine that with the action of the thing, smooth on a massive round, and it's just so much more deadly it doesn't bear comparison.
It's a weapon, for a war, not a tool for getting meals.