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 49 - 64 of 390 results
Showing 49 - 64 of 390 results


Beretta 390 Hammer Assembly Bushing 20ga
$6.83
In Stock

Beretta 303/390/391/A300 Ultima Locking Block, 12ga.
$40.37
Sold Out

Beretta 390 Hammer Assembly Bushing 12ga
$6.83
Sold Out

Pachmayr F325 Deluxe Shotgun & Rifle 1" Pad, Black, Small
$26.99
In Stock

Pachmayr F325 Deluxe Shotgun & Rifle 1" Pad, Brown, Small
$26.99
In Stock

Pachmayr F325 Deluxe Shotgun & Rifle 1.1" Pad, Black, Medium
$27.99
In Stock

Pachmayr F325 Deluxe Shotgun & Rifle 1.1" Pad, Brown, Medium
$26.99
In Stock

Beretta 300 Series, 390, 3901, 391, 1200 12ga Mag Spring
$12.83
In Stock

Carlsons Tactical Breacher Choke, 12ga. Benelli/Beretta Mobil
$67.99
In Stock

HI VIZ H3 Compsight Tritium/Fiber Optic Shotgun Front Sight
$42.95
In Stock