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.


Beretta Cylinder O-Ring, 12 Gauge
$7.88
Sold Out

Beretta Cylinder O-Ring, 20 Gauge
$7.88
In Stock

Beretta 390/391 Cartridge Latch Assembly, 12 & 20 Gauge
$41.85
In Stock

Carlson's Ported Gold Competition Target Choke, 12ga. Benelli / Beretta Mobil
$72.99

Graco Universal Shotgun Barrel Weight Kit
$64.00
In Stock

Carlson's White Wing Dove Choke Tube, 20ga. Benelli / Beretta Mobil
$64.99

Beretta Trigger Guard Buffer, 3 Pack
$18.00
Sold Out

Carlson's White Wing Dove Choke Tube, 12ga. Benelli / Beretta Mobil
$64.99

Beretta 12ga. Mobilchoke Ported Extended Choke Tubes
$43.00