AR 9 vs AR 15 Pistol
AR 9 and AR-15 pistols are of best performance. However, their design serves different purposes. An AR-9 comes with a 9mm barrel, lower receiver, magazine, bolt carrier group, AR pistol brace, and blowback action. Whereas AR-15 has Barrel (chambered in .223/5.56), lower receiver to fit in .223/5.56 Magazines, and bolt carrier groups. Ar15 cycles off of a Direct Impingement. There are much more differences in detail in our blog; check it out!