Our barrels can be identified by the markings located at the top of the barrel (in line with the pin in the barrel nut and the gas hole toward the muzzle end. This barrel is marked “ZTOL 1/9 .223 WYLDE” meaning it was manufactured by ZTOL precision barrels, has a 1/9 twist, and is chambered in 223 WYLDE.The lot number (regaurding which manufacturing lot this barrel was sourced from) is located by the gas hole. As seen in above picture “L2” refers to this barrel being sourced from production lot 2 and is used for quality control purposes.
