--- title: "Winchester SX4 20 Gauge Semi-Auto Shotgun" description: "20 gauge semi-auto shotgun with a 28\" back-bored barrel, 3\" chamber, 4+1 capacity, gray Cerakote finish, and Invector-Plus chokes." canonical_url: "https://www.kygunco.com/product/winchester-511251692-super-x4-20ga-28-gray-black-syn-3rd" meta: author: KYGUNCO "og:description": "20 gauge semi-auto shotgun with a 28\" back-bored barrel, 3\" chamber, 4+1 capacity, gray Cerakote finish, and Invector-Plus chokes." "og:image": "https://cdn.kygunco.com/assets/products/220190/thumbnail.jpg?v=1713455750" "og:image:height": "500" "og:image:width": "500" "og:title": "Winchester SX4 20 Gauge Semi-Auto Shotgun" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Guns](https://www.kygunco.com/category/shooting/guns) / [Shotguns](https://www.kygunco.com/category/shooting/guns/shotguns) / [Semi-Auto](https://www.kygunco.com/category/shooting/guns/shotguns/semi-auto) / WNC-511251692 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/220190/main.jpg?v=1713455750) For illustration purposes only, this image may not be an exact representation of the product. # WINCHESTER Super X4 20 Gauge 3" 28" 3rd Semi-Auto Shotgun - Tungsten / Black The Winchester Super X4 is a 20 gauge semi-automatic shotgun with a 28" back-bored vent rib barrel, 3" chamber, and 4+1 capacity. It features a gray Cerakote metal finish, black textured synthetic stock, Invector-Plus choke system, TruGlo fiber optic front sight, and included Full, Modified, and Improved Cylinder chokes. $984.65 ** 5 interest-free payments of **$196.93** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$120.63**/month with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** Ships To FFL Dealer Fulfilled by a partner warehouse. ** Partner Fulfilled ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Almost gone. Order now before it sells out. Item # 220190 Style WNC-511251692 UPC 048702018688 Condition New Manufacturer [Winchester](https://www.kygunco.com/brand/winchester) Model Super X4 Hand Right Hand Finish Grey Round Capacity 3 Caliber 20 Gauge Action Semi-Auto Barrel Length 28 in Winchester's Super X Autoloading shotgun has a worldwide reputation for speed, reliability and handling. The Super X4 is lighter, faster cycling, smoother swinging and more ergonomic than ever before. The self-adjusting active valve system cycles a wide variety of loads while reducing "felt recoil", while an active valve system adjusts gas pressures using Quadra-Vent technology. Quadra-Vent Ports vent excess gases for cleaner operation. Its stock features improved ergonomics, a smaller pistol grip and textured gripping surfaces give your hands a sure, non-slip grip. It also utilizes LOP spacers and a Inflex technology recoil pad. The SX4 barrel features back-bored technology and Invector-Plus choke tubes. This Hybrid model features a gray cerakote metal finish and synthetic stock. - Action: Semi-Auto - Gauge: 20 Gauge - Barrel Length: 28" - Capacity: 4+1 - Chamber: 3" - OAL: 49" - Weight: 6.12 lbs - Choke Configuration: Invector-Plus - Stock Description: Fixed Textured Grip Paneled - Trigger: Drop-Out - Chokes Included: F,M,IC - Barrel Description: Back-Bored Vent Rib - Sights: TruGlo Fiber Optic Front - Safety: Crossbolt - Barrel Length Range: 28" to 28.99" - Weight Range: 6 lbs to 6.99 lbs - Hand: Right - Stock Finish Group: Black ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Don't Forget Your Ammo ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/winchester-511251692-super-x4-20ga-28-gray-black-syn-3rd#webpage","@type":"WebPage","description":"20 gauge semi-auto shotgun with a 28\" back-bored barrel, 3\" chamber, 4+1 capacity, gray Cerakote finish, and Invector-Plus chokes.","name":"Winchester SX4 20 Gauge Semi-Auto 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