Winchester Sx4 Universal Hunter Lh Mobl 12Ga 3.5 28
The Winchester SX4 Universal Hunter is a gas-operated autoloading shotgun built specifically for left-handed shooters who demand reliable performance in the field. Built on a lightweight aluminum alloy receiver and finished in Mossy Oak Bottomland camo, this 12-gauge 3.5-inch shotgun delivers the ergonomics and handling that lefties deserve—not as an afterthought, but as the core design. At 28 inches, the barrel strikes a practical balance for hunting applications where you need both maneuverability and effective shot placement.
Winchester engineered the SX4 with a self-adjusting active valve system that cycles reliably across a wide range of ammunition, so you're not guessing whether your shells will function. The chrome-plated chamber and bore resist corrosion and wear, while the back-bored barrel technology optimizes pattern density. A ventilated rib aids sight acquisition, and the drilled and tapped alloy receiver accepts the included Picatinny rail for optics or accessories. The Invector-Plus choke tube system (three tubes included) lets you tailor your shot pattern to game and distance.
Handling is where the SX4 shines for southpaws: the reversible crossbolt safety can be repositioned to suit your hand, the larger bolt handle and oversized bolt release button reduce fumbling, and the rounded grip geometry feels natural whether you're mounting fast or holding steady. The Inflex recoil pad absorbs punishment, and adjustable length-of-pull spacers ensure proper fit. You also get an LPA fiber-optic front sight for quick target acquisition and a drop-out trigger group that simplifies maintenance.
If you're a left-handed waterfowler, upland hunter, or clay shooter tired of right-hand-only compromises, the SX4 Universal Hunter doesn't just accommodate your natural swing—it anticipates it.
Key Features
- Gas-operated action with self-adjusting active valve for reliable cycling
- Left-hand specific ergonomics: reversible safety, enlarged bolt handle and release button
- Lightweight aluminum alloy receiver with drilled, tapped mounting points and Picatinny rail
- Chrome-plated chamber and bore for corrosion resistance
- Mossy Oak Bottomland camo finish on synthetic stock
- Back-bored barrel with ventilated rib and LPA fiber-optic front sight
- Invector-Plus choke tube system with three tubes included
- Inflex recoil pad and length-of-pull spacers for fit and comfort
- Drop-out trigger group for easy cleaning
- Spring-loaded ejector
Specifications
| Gauge | 12 |
| Chamber | 3.5 inch |
| Barrel Length | 28 inches |
| Receiver Type | Lightweight aluminum alloy |
| Receiver Finish | Drilled and tapped with Picatinny rail |
| Stock Finish | Synthetic, Mossy Oak Bottomland camo |
| Choke System | Invector-Plus (three tubes included) |
| Safety | Reversible crossbolt |
| Ejection | Spring-loaded ejector |
| Recoil Pad | Inflex Technology with adjustable length-of-pull spacers |
Frequently Asked Questions
Is this shotgun truly built for left-handed shooters?
Yes. The SX4 Universal Hunter features a reversible crossbolt safety that can be repositioned for left-hand operation, an enlarged bolt handle and oversized bolt release button designed for southpaw manipulation, and a rounded grip geometry that feels natural in the left hand. These are core design features, not aftermarket modifications.
What ammunition will this shotgun reliably cycle?
The self-adjusting active valve system is designed to handle a wide range of ammunition loads. The 3.5-inch chamber accepts standard 2.75-inch, 3-inch, and 3.5-inch shells. For specific load recommendations, consult Winchester's documentation or contact customer service.
What choke tubes come with the SX4 Universal Hunter?
The shotgun includes three Invector-Plus choke tubes. The specific constrictions are not detailed in the product specs; refer to Winchester's documentation for the exact configuration.
Can I mount a scope or red dot on this shotgun?
Yes. The drilled and tapped aluminum alloy receiver includes a Picatinny rail already mounted, providing a standard platform for optics and accessories. The ventilated rib also supports iron sights, and the gun ships with an LPA fiber-optic front sight for quick target acquisition.

