Beretta 300 Series (Older Model 301, 302, 303 & 304)
Parts here are specific to Beretta 300 Series 12/20 gauge shotguns unless otherwise noted. MGW carries replacement barrels, forearms, stocks, sights, springs, pins and other parts for this series which includes older 301, 302, 303 & 304 models. These factory original and aftermarket parts will ensure that your 300 Series shotgun functions flawlessly with every trigger pull.
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.


Beretta 303/390/391/A300 Extractor Plunger, 12/20 GA.
$7.35
In Stock

Beretta 300 Series/390/391/A300 Extractor Spring / 90 Series Pistol Safety Plunger Spring
$7.88
In Stock

Beretta 390/391/303/A300 Outlander & Ultima, Browning B-80 12 GA. Firing Pin
$18.20
In Stock

Beretta 303/390/391/A300 Firing Pin Spring
$7.88
In Stock

Beretta 300 Series and 390 12GA Forend Cover
$8.40
In Stock

Browning B-80 / Beretta 300 Series Forearm Cap Assembly 12/20ga
$35.02
In Stock