December 23, 2025
Description
Wall mount for 20 gauge Mossberg 500 shotgun. The mount extends into the mag well and then locks onto a lip on the trigger side of the mag well to secure it in place. Provides enough clearance from the wall to also install a trigger lock with the key facing the wall.
Printing
Print with the domed part of the mount facing upwards. Supports can be used on the notch at the bottom if you want but its not required. I've printed with and without the supports and there isn't much difference. I used PLA for this print but other materials would be fine as well. I printed with 3 walls and 20% infill and it seems plenty strong.
Installation
Put the mount into the mag well at an angle starting with the dome side just like you were loading a shotgun shell. Once fully in the mag well slide the shotgun forward so the back lip locks into the back side of the mag well on a lip thats just above the trigger assembly.
License:
Creative Commons — Attribution — Noncommercial