The M16 first saw combat in the Vietnam war and went on to become ... I discuss this in my extensive review of the best 5.56 ammo and .223 ammo test. If you want to fire 5.56 NATO ammo through your ...

Additionally, the Army used the wrong propellant in the 5.56 ammo, which created reliability issues. All these incidents gave the M16 a terrible reputation that continues to plague it, mostly ...

This M16 build and class setup is all about medium ... The 5.56 High-Velocity ammo and 45 Round Magazine are included to increase our ammo capacity and improve projectile velocity.