Portable Weapons - Shotguns

Winchester SX4™

Fast, versatile and dependable semi-automatic shotgun

When operators need a shotgun that can adapt instantly to changing scenarios, the Winchester® SX4™ delivers. Designed with military and security missions in mind, it combines speed, reliability and user comfort. Whether countering drones, clearing confined spaces, or responding to close-range threats, the SX4™ provides trusted performance where it matters most.

 

*Winchester® is a trademark registered by Olin Corporation.

Key benefits

  • Versatile firepower – accepts both standard 2¾” (70mm) and 3″ magnum (76mm) cartridges, giving flexibility in the field

  • Rapid follow-up shots – semi-automatic action ensures fast, continuous fire in critical moments

  • Reliable in all conditions – Active Valve gas system automatically adjusts to different ammunition for consistent function

  • Built for durability – hard-chromed chamber and bore combined with Cerakote® surface treatment resist wear and harsh environments

  • Reduced recoil – Inflex II butt pad absorbs kickback and improves shooter comfort, even during extended use

  • Ready for modern optics – compatible with red dot sights for faster target acquisition and improved accuracy

Variants & Options

  • Choice of magazine capacities: 6+1 (Compact) or 8+1 rounds (High Capacity)

  • Provided with cylinder, 1/4 (IC), 1/2 (M), ¾ (IM) and full chokes

  • Barrel lengths from 470 mm (Compact) to 710 mm (High Capacity) for mission-specific adaptability