450.00 Mossberg 500 12GA - 18" Barrel Tricities / Pitt / Maple Aug 29, 2024 - 2:38 PM Pistol Pete Hello, I am selling my Mossberg 500 with an 18" barrel. The firearm was purchased in May of 2018, I am the original owner. The gun has approximately 250 rounds through it. The shotgun was last used in 2020.