My step father was a smith and I inherited a some parts that I would like to eventually sell. I believe them to all be S&W pistol parts, Triggers, hammers and parts associated with doing action jobs. a lot of them have part numbers on the blister packs. I have not been able to match any of the part numbers up to Brownell's, Midway, Numrics. One of the triggers have a part #4729 and #4390. I could not find a place to access part numbers on the S&W website. Any help would be appreciated, Thanks