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 177 - 192 of 378 results
Showing 177 - 192 of 378 results


Beretta Field / Hunting Buttplate 12 Ga. Curved
$28.35
In Stock

Allen Red Low Profile Shotgun Sight 7/32"
$9.98
In Stock

Beretta 3mm White Luminous Front Competition Sight
$11.55
Sold Out

Beretta 4mm Red Luminous Front Sight
$12.75
In Stock

Beretta 3mm Red Luminous Front Sight Bead
$12.75
Sold Out

Beretta Large Bradley Front Sight
$16.80
Sold Out

Beretta Mid Bead 2.2mm X .45mm
$12.74
Sold Out

Beretta 3.8mm Red Luminous Front Sight Bead
$12.74
In Stock

Beretta Small Bradley Front Sight
$16.80
Sold Out