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.

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Beretta 390/391/303/A300 Ultima Connecting Rod 20 GA.

Beretta 390/391/303/A300 Ultima Connecting Rod 20 GA.

$40.95

1
Ratings Snapshot
5
out of 5
Would recommend this product.

In Stock

Beretta 303/390/391/A300 Ultima Connecting Rod Pin 20 GA.

Beretta 303/390/391/A300 Ultima Connecting Rod Pin 20 GA.

$5.25

Not Yet Rated

In Stock

Beretta 300 Series Trigger Plate Cutoff Lever Plunger

Beretta 300 Series Trigger Plate Cutoff Lever Plunger

$8.40

Not Yet Rated

In Stock

Beretta 303 Cut Off Locking Plunger Spring

Beretta 303 Cut Off Locking Plunger Spring

$5.25

Not Yet Rated

In Stock

Beretta 303 Cut Off Locking Plunger

Beretta 303 Cut Off Locking Plunger

$7.35

Not Yet Rated

In Stock

Beretta 303 45MM Drop Washer
Beretta 303 50MM Drop Washer

Beretta 303 50MM Drop Washer

$12.60

Not Yet Rated

In Stock

Beretta 303 55MM Drop Washer

Beretta 303 55MM Drop Washer

$12.60

Not Yet Rated

In Stock

Beretta 303 60MM Drop Washer

Beretta 303 60MM Drop Washer

$12.60

1
Ratings Snapshot
5
out of 5
Would recommend this product.

In Stock

Beretta 12/20GA Ejector

Beretta 12/20GA Ejector

$15.75

1
Ratings Snapshot
5
out of 5
Would recommend this product.

In Stock

Beretta Ejector Spring Guide

Beretta Ejector Spring Guide

$8.99

Not Yet Rated

In Stock

Beretta 301 Ejector Spring

Beretta 301 Ejector Spring

$6.30

Not Yet Rated

In Stock

Beretta 390/391/303/A300 Outlander & Ultima Extractor 12 GA

Beretta 390/391/303/A300 Outlander & Ultima Extractor 12 GA

$36.96

1
Ratings Snapshot
5
out of 5
Would recommend this product.

In Stock

Beretta 303/390/391/A300 Extractor Pin, 12/20 GA.

Beretta 303/390/391/A300 Extractor Pin, 12/20 GA.

$5.25

Not Yet Rated

In Stock

Beretta 390/391/303/A300 Ultima Extractor 20 GA

Beretta 390/391/303/A300 Ultima Extractor 20 GA

$36.96

Not Yet Rated

In Stock