I just received my first ever springer in the mail (Hatsan Torpedo 100X .22) and it has a 15 mm crack in the stock on the back end of the gas spring housing. Because of the location I am concerned that the crack would grow over time. This being my first springer, I am looking for advice on whether this will be a problem and I should return the rifle, or if it will merely be cosmetic and not get worse over time. Pictures are attached, Thank you.