The cold hammer-forged barrel is unconventional for your .223 Rem in that it has a very rapidly 1:7 rifling twist rate, so it is actually made for heavier .22 calibre projectiles – important to note. It is 24in in length, with a M15x1 threaded muzzle and cap, and it has a semi-varmint profile of which 12in within the fore-finish will not be free