The 5.56x45 cartridge was developed after extensive research into small-caliber, high-velocity projectiles in the late 1950s and early 1960s, and it soon became one of the most popular centerfire cartridges in the world. Law enforcement agencies and militaries around the world use the cartridge, as do an increasing number of civilians in the United States.
Popular worldwide, many manufacturers of firearms have produced weapons chambered for the 5.56x45 cartridge – including Armalite, Bushmaster, Colt and others that have manufactured semi-automatic rifles and fully automatic rifles for this popular caliber, making it pretty easy to find cheap and bulk 5.56 ammo
Learn the history of 5.56x45 ammo and visit us at Ammo.com to get the best discount 5.56x45 ammo online.