Winchester Guns SX4 Defender 12 Gauge 18.5" 3" 4+1 Semi-Auto Shotgun - FDE

The Winchester SX4 Defender is a tactical semi-automatic shotgun chambered in 12 Gauge with a 3-inch chamber that handles both 2.75" and 3" shells. Built on Winchester's proven Super X4 gas-operated action, this Defender variant delivers fast follow-up shots and reliable cycling in a compact, maneuverable package purpose-built for home defense and tactical use.

The Defender wears an 18.5-inch stainless steel barrel finished in Flat Dark Earth (FDE) Cerakote for corrosion resistance and a reduced visual signature. An Invector-Plus flush choke system is installed and ships with Full, Improved Cylinder, and Modified choke tubes. The magazine tube holds 4+1 rounds (four 2.75" shells plus one in the chamber), putting five rounds on tap when they're needed most.

A Picatinny optics rail sits atop the receiver for red dot or low-power variable optic mounting. The LPA fiber optic front sight paired with a ghost ring rear sight delivers fast, intuitive target acquisition under stress. The fixed pistol grip stock in matching FDE gives an aggressive, compact shooting stance with an easy trigger reach, and the crossbolt safety sits naturally at the trigger guard for intuitive operation. Overall length measures 39.5 inches with a weight of approximately 6.14 pounds, making the SX4 Defender well-balanced for both shoulder-mounted work and close-quarters maneuvering.

DISCLAIMER: Firearms and receivers are subject to state-specific shipping restrictions and must be transferred through a valid FFL dealer. Please visit our shipping restrictions page to review all applicable restrictions for your state. Subject to change.