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.
Showing 305 - 320 of 361 results
Showing 305 - 320 of 361 results


Ballistic Specialties Beretta Trigger Shoe
$25.00

Beretta 300 Series B-80 12 Ga. Magazine Tube Plug
$12.89
Sold Out

Beretta Sear Spring, 12/20/28 Gauge
$5.25
Sold Out

Beretta 390/391/303/ Browning B-80 Cocking Handle, 12/20 Gauge
$30.19
Sold Out

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

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

Beretta 300/390 Gas Piston Bushing Washer
$7.35
In Stock