This is a simple texture mod to make the pump shotgun a black color, instead of the wood and chrome.
To install this mod replace the file called "chromegun.txd" inside "gta3.img".
My first mod/skin, hope you like it! Make backups before you install. One more thing though, in the readme file, it says it was made by "ballasbusta" that's me on Grand Theft Wiki, I forgot that I was "baconwizard" on this site.
(I apologize if this has already been done, this was just an idea that popped into my head)