C244 The Black Stone Castle Rifle Came into Being

"Mr. Bao Guo, it seems there's a slight misunderstanding about firearms on your part. The 9mm caliber is typically associated with pistol ammunition. In contrast, standard rifle calibers in use globally are the 7.62 mm mid-caliber, the 5.56 mm small-caliber, and the 12.7 mm large-caliber for sniper rifles. The 9mm you're asking for, well, it's..