I can't analyze the shotgun because it would be an online order so I am a bit leery of shopping for this one particular. KC but the wrong way up it claims CK. not even stamped all that effectively. As far as the remainder of the serial on another , https://buy-remington-87011098.answerblogs.com/34832473/5-simple-statements-about-remington-870-wingmaster-2-3-4-only-explained