The US Army designated the M16A1 the standard service rifle in 1969. M193 ammo was the original military grade cartridge used in M16 rifles for service use and features a 55 grain full metal jacket projectile with an effective range of 500 yards. 5.56x45mm ammo is an example of the world's trend to replace larger, heavier ammunition with lighter loads with comparable or improved ballistics.
Review by Gunny
Posted On: 7/27/15 By: will