This is a set of meprolight night sights, the night sight glow does not work any more, they could be used as white dots, these will fit, the S&W 3904, 5904, 5906, 6904, 6906, please see pictures for the guns. These are being sold as is, they are brand new, I cracked open the package to check the glow. There is a 3% credit card fee on the total, sales tax will be added for the state of Florida, money must be here within 5 days. All parts should be examined by a gunsmith before firing or installing them on your gun.