A video that first discusses how the military arrived at a 14.5 inch barrel for the M4 before moving on to whether there is any significant difference between the performance of the 14.5 and 16 inch barrels, as well as some of the history of why the minimum legal barrel length for a rifle is 16 inches.
As far as the choice of 14.5 inches, the narrator explains that it came down to two factors: (a) Colt using the gas system from the CAR-15 (i.e., the carbine length system) to save money, which established where the gas block (and, hence, bayonet lug) would sit; and (b) then using a barrel long enough to fit a bayonet at the front end. With a carbine length gas system, a 16-inch barrel is too long (you need the mid-length gas system for the 16 inch barrel if you want to use a bayonet).
VIDEO: "That DUMB 1.5" Every AR15 nerd goes nuts over"
Mil Gear Explainer (14 min.)
No comments:
Post a Comment