for a firearm and looking for price comparisons check Wiki.
Wikiarms.com is a good place to start looking. Ammo and other assorted amenities.
Side note. IF you are looking for a good sidearm--
https://www.wholesalehunter.com/Product/Details/11088343#S&W 5906, $317, $25 shipping. Police trade in. It my primary summer EDC. Replace recoil and hammer spring and it'll work. If you have any issues to start with.
Nemo