The Winchester SX4 semi-automatic shotgun delivers rapid cycling performance with a 28-inch barrel engineered for versatility across hunting and sporting applications. This 12-gauge platform combines Winchester's proven gas-operated system with modern manufacturing precision to handle everything from light target loads to heavy 3-inch magnum shells.
What Makes This Different
The SX4's Active Valve gas system automatically adjusts to different shell lengths and loads without manual intervention, cycling reliably from 2¾-inch light loads through 3-inch magnums. The chrome-plated chamber and bore resist corrosion while maintaining consistent performance across thousands of rounds. Winchester's Invector-Plus choke system provides superior pattern control compared to standard threaded chokes, with three factory chokes included for immediate field readiness.Key Features
- Active Valve gas system cycles 2¾" to 3" shells automatically
- 28-inch barrel with chrome-plated bore and chamber for corrosion resistance
- 4+1 capacity with drop-out trigger group for easy maintenance
- Three Invector-Plus chokes included (Full, Modified, Improved Cylinder)
- Matte black finish on receiver and barrel reduces glare
- Synthetic stock with textured grip surfaces for secure handling
- Crossbolt safety located behind trigger guard
Technical Specs
- Gauge: 12 gauge, 3-inch chamber
- Barrel Length: 28 inches
- Capacity: 4+1 rounds
- Action: Semi-automatic, gas-operated
- Choke System: Invector-Plus threading
- Stock: Black synthetic with textured grip panels
- Overall Length: Approximately 48 inches
- Weight: Approximately 6.75 pounds
- Safety: Crossbolt safety behind trigger guard

