.223 Rifles are built in compatibility with the highly effective and useful .223 or .223 Rem cartridges which have almost the same external dimensions as the 5.56x45mm NATO military cartridge, except maximum pressure and chamber shape. Take your pick from the vast array of .223 Rifles for sale from firearm manufacturers such as Tikka, Christensen Arms, Armalite, Barrett, Sako, Sauer, Mauser, Kimber, Surgeon Rifles and more. Shop now and get the 223 rifle of your choice to enjoy superior accuracy and reliable results.