Smith & Wesson Thumbpiece Nut, Blue

FITS: 31, .32; 32, .32; 34, .22; 36, .38; 37, .38; 38, .38; 42/442, .38; 49, .38; 10, .38; 12-4, .38; 13-3, .357; 14, .38; 15-4, .38; 16, .32 Mag; 17-4, .22; 19, .357; 581, .357; 586, .357; 24, .44 Spl; 25-2, .45 ACP; 25-5, .45 LC; 27-4, .3