Beretta 390 / 3901
The parts here are specific to both the Beretta 390 & 3901 shotgun models chambered in 12 or 20 gauge unless otherwise noted. MGW carries replacement stocks, forends, barrels, sights, trigger groups, pins and other parts for these models. Keep your semi-auto 390 or 3901 firing like new with OEM replacement parts and aftermarket upgrades.
The schematic may not represent all the parts available - please scroll down for a complete list of items offered for this model.
Click on any part number highlighted in RED to view specific details or to purchase online.
It is recommended that all parts be fit by a qualified gunsmith.
Showing 257 - 272 of 390 results
Showing 257 - 272 of 390 results


Beretta 300 Series/390/391 Carrier Catch Plunger
$5.25
In Stock

Beretta 300 Series/390/391 Hammer Spring Guide Plunger
$4.20
In Stock

Beretta 300 Series 390/391 Trigger Pin
$6.30
In Stock

Beretta 300 Series/390/391/A300 Outlander & Ultima Connecting Rod Pin 12 GA.
$5.25
In Stock

Beretta 390/391/303 Hammer Assembly 12GA
$23.10
In Stock

Beretta 300 Series/390 Safety Spring Plunger
$5.25
Sold Out

Beretta 300 Series / 390 / 391 / 9000S Safety Spring
$5.25
In Stock