Beretta AL390 Synthetic 12 Ga Semi-Auto Shotgun, 28" Barrel, 3" Chamber, Mobilchoke System
The discontinued Beretta AL390 Synthetic combines the company’s self-compensating gas system with a lightweight aluminum receiver and a rugged polymer stock. Built in the 1990s, this 12-gauge variant offers a 3-inch chamber, a chrome-lined 28-inch barrel, and the versatile Mobilchoke thread pattern—giving shooters broad aftermarket support. Its matte-black finish, integral recoil pad, and molded checkering make it a durable field gun that remains highly regarded even after production moved on to the AL391 series.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Specific Condition Notes: Minimal handling marks on the stock and receiver; no notable finish loss.
What’s Included
- Beretta AL390 owner’s manual
- Beretta safety/instruction booklet (sealed)
- Four screw-in Mobil-style choke tubes – Full, Modified, Improved Cylinder, and RedHead Turkey
- T-handle choke tube wrench
- Green zippered nylon pouch for choke set
This AL390 uses Beretta’s self-regulating gas system that vents excess pressure, ensuring reliable cycling across light field loads to heavy 3-inch shells while reducing felt recoil.
The Italian-forged, chrome-lined 28" barrel features a vent rib and single brass bead for quick target acquisition. Mobilchoke threading accepts the included Full, Modified, Improved Cylinder, and RedHead Turkey tubes, letting you fine-tune patterns for upland, waterfowl, or spring gobbler seasons.
Its matte-black aluminum receiver keeps weight down without sacrificing strength. The synthetic stock and fore-end are molded from impact-resistant polymer and wear molded checkering for a secure grip in wet conditions. A factory recoil pad softens the shot and keeps the 14.5" length of pull comfortable for most shooters.
The shotgun ships with a factory two-shot plug installed, limiting capacity to 2+1 for migratory bird compliance. Removing the plug restores standard tube capacity if local regulations allow.
No longer in production, the AL390 remains sought after for its proven reliability, straightforward maintenance, and broad choke compatibility—making this well-kept example a strong choice for both the field and the collection.