Cosmetic flaws may be indicative of normal use, although some may be telltale signs of a bigger problem. Firearms used regularly for hunting purposes may reveal minor blemishes from field use. Personal carry guns could show slight wear from being holstered. Older pieces might exhibit their history in the form of tarnish or faded finish. The bottom line is this – if a firearm has been used properly and cared for, it should never have major dents or other visible abnormalities that could compromise its function.