Custom 10.5" Complete Upper, utilizing a billet aluminum receiver utilizing an innovative surface preparation method to ensure a consistent and superior finish. This upper utilizes an M-4 feed ramp cut before being Mil-Spec Type III hard anodized.
BCA threaded 9mm conversion barrels for Glock 23 are manufactured by Bear Creek Arsenal in Sanford NC, USA. 9mm conversion barrels allow you to shoot 9×19mm out of a Glock 23 which normally shoots .40 S&W by simply swapping the barrels.