The Mossberg Journal

How Mossberg 500/590 Pump-Action Shotguns Work

Written by Mossberg | Jul 25, 2025 3:38:47 PM

Ever wondered how a pump-action shotgun actually works? 

This in-depth 3D animation covers the internal operation of all moving parts during the firing sequence of Mossberg 500 and 590 pump-action shotguns.

This video is the result of a months-long project involving Mossberg engineers and renowned 3D animation artist Matt Rittman. ‪@mattrittman‬

Scope out the 500 Series.

Check out the Mighty 590.