Winchester SX4 Defender 12ga 18.5″ 3″ Chamber Woodland/FDE

$816.00

Semi-automatic Winchester SX4 Defender in 12 Gauge with an 18.5″ barrel and 3″ chamber. Features Woodland camouflage synthetic stock, FDE Cerakote receiver, Active Valve gas system, Picatinny optics rail, ghost-ring sights, and three Invector-Plus ch

SKU: LIP|WI511320395 Category:

The Winchester SX4 Defender is a compact, semi-automatic 12 Gauge shotgun built for versatility across defensive, upland, and competition contexts. It pairs a compact 18.5-inch barrel with a 3-inch chamber and a Woodland camouflage synthetic stock with a Flat Dark Earth (FDE) finish on the receiver. The design incorporates an Active Valve gas system and back-bored technology to improve cycling reliability across a broad range of loads.

Key Specifications

  • The action is Semi-Auto for rapid follow-up shots and consistent cycling.
  • The gauge is 12 Gauge for broad ammunition compatibility.
  • The barrel measures 18.5 inches for compact handling in confined environments.
  • The chamber accepts 3-inch shells for extended ammunition capability.
  • The listed capacity is 4 (2.75″ shells) in the standard configuration.
  • The stock is synthetic with Woodland camouflage and includes a pistol-grip style for control.
  • The receiver is an FDE aluminum alloy with a Picatinny optics rail.
  • Sights are an LPA front and ghost-ring rear arrangement for rapid sight acquisition.
  • Chokes included are Full / Modified / Improved Cylinder (Invector-Plus flush type).
  • Operating system is a self-adjusting Active Valve gas system with chrome-plated chamber and bore.

The SX4 Defender combines compact dimensions and practical features to serve a range of field and defensive roles. Its configuration — compact barrel, robust gas system, ghost-ring sights, and included choke set — makes it a flexible platform for users who value reliable operation and straightforward ergonomics.

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UPC

048702026454

Manufacturer

Winchester

Manufacturer Part Number

511320395

Action

Semi-Auto

ATF Type

Shotgun

Barrel Length

18.5"

Caliber/Gauge

12 Gauge

Capacity

4 + 1

Chokes Included

Full/Improved Cylinder/Modified

Color

Flat Dark Earth

Model

SX4

Package Height

3.0

Package Width

9.0

Product Type

Shotgun

Safety

Crossbolt

Shipping Weight

8.8

Sights

LPA Front and Rear Ghost Ring

Sights Type

Fixed Sights

Length

37.4000

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