Winchester Super X3 12 Gauge Semi-Auto, 28" Vent-Rib, Invector-Plus, Active Valve, Belgium Made, Black Synthetic
This Winchester Super X3 (SX3) stands out as a Belgium-made, gas-operated 12 gauge with Winchester's self-adjusting Active Valve system and a 28" vent-rib barrel. It is chambered for 2 3/4" and 3" shells and uses the Invector-Plus internal choke system, with an Improved Cylinder installed and a Full choke provided. The shotgun pairs a matte black receiver with a contrasting matte gray barrel and a black synthetic stock, offering a practical, field-ready configuration.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Specific Condition Notes: The firearm is in great shape overall, with minor scratches and blemishes present. The bore is clean and shiny. There are spots of pitting on the barrel's finish. Deep scratches are present around the trigger guard.
What’s Included
- Winchester Super X3 12 gauge semi-automatic shotgun
- Improved Cylinder choke tube installed
- Full choke tube
The Super X3 uses a semi-automatic, gas-operated system with Winchester's self-adjusting Active Valve, built to handle a range of 2 3/4" and 3" loads. It features a right-side bolt handle and a cross-bolt safety for straightforward operation. The ejection port is on the right side, and the bolt release is positioned forward of the trigger guard.
The 28" vent-rib barrel is paired with a brass front bead for clean sight alignment. Its Invector-Plus internal choke system provides versatility at the muzzle; this example comes with an Improved Cylinder tube installed and includes a Full choke tube.
The shotgun is configured with a black synthetic stock and forend featuring molded texturing for a secure hold, plus a recoil pad and a rear sling swivel stud. Length of pull is 13.5". The receiver wears a matte black finish, contrasted by a matte gray barrel for a purposeful look.
Manufactured in Belgium and imported by BACO, Inc., Morgan, Utah, this SX3 carries clear origin markings. Capacity is 2+1, and the setup remains practical and straightforward for the field.




