Anything common: any weapon in the calibers 9mm and 5.56/.223. I have a taurus g3 (cost $250 at a sporting goods store), and in the process of buying an ar15 part by part from a coworker (thatll be 750, which is AMAZING because everythings sold out). An ar 15 is pretty much America's rifle, pretty much civilian version of the m4. Its well known, theres a shit ton of parts for it,,in the caliber of 5.56/.223 caliber, which is extremely common since our armed forces uses 5.56 caliber rounds. The difference between 5.56 and .223, im a little iffy on, its got something to do with the pressure i think, but if you can, ALWAYS go with a rifle that has "5.56/ .223" engraved on it, because that rifle can accept both variants of the caliber. Same thing for 7.62 NATO/ .308: only get the one engraved with "7.62/ .308."
Anything common: any weapon in the calibers 9mm and 5.56/.223. I have a taurus g3 (cost $250 at a sporting goods store), and in the process of buying an ar15 part by part from a coworker (thatll be 750, which is AMAZING because everythings sold out). An ar 15 is pretty much America's rifle, pretty much civilian version of the m4. Its well known, theres a shit ton of parts for it,,in the caliber of 5.56/.223 caliber, which is extremely common since our armed forces uses 5.56 caliber rounds. The difference between 5.56 and .223, im a little iffy on, its got something to do with the pressure i think, but if you can, ALWAYS go with a rifle that has "5.56/ .223" engraved on it, because that rifle can accept both variants of the caliber. Same thing for 7.62 NATO/ .308: only get the one engraved with "7.62/ .308."