Winchester Repeating Arms 613051 Invector Plus12 Gauge Full 17-4 Stainless Steel

The Winchester Invector Plus 12 gauge full choke tube in 17-4 stainless steel is a replacement or accessory choke for Winchester shotguns equipped with the Invector-Plus system. If you're running a Winchester scattergun and need to dial in tighter, denser patterns for distant birds or specific hunting scenarios, this full-constriction tube delivers the control you're after. The 17-4 stainless construction offers durability and corrosion resistance, making it a solid choice for hunters who regularly push their shotguns in tough conditions.

The Invector-Plus design uses a longer choke taper that produces more uniform shot patterns with fewer erratic pellets—a real advantage when you need consistency. The system also seals cleanly in the barrel, eliminating gas leakage that can damage both the tube and barrel over time. Full choke is the tightest constriction in the Invector-Plus lineup, concentrating your pattern downrange for birds at distance. Whether you're setting up for turkey, late-season waterfowl, or long-range upland work, this tube gives you the terminal performance Winchester's back-bored barrels are designed to support.

Invector-Plus tubes are straightforward to swap—no gunsmith required. Keep a few in your range bag or truck so you can match constriction to conditions on the fly. The 17-4 stainless finish resists corrosion and wear, so this tube will remain reliable across seasons of use.

Key Features

• Full choke constriction for dense, tight shot patterns
• 17-4 stainless steel construction for durability and corrosion resistance
• Longer taper design for consistent, uniform pattern density
• Sealed system prevents gas leakage between tube and barrel
• Interchangeable Invector-Plus design for quick field changes

Specifications

Frequently Asked Questions

What shotguns does the Invector-Plus full choke fit?

This tube is designed for Winchester shotguns equipped with the Invector-Plus choke system. Verify your shotgun's choke system before purchase—Invector-Plus is Winchester's interchangeable system and is not compatible with standard Invector (older Winchester tubes) or choke systems from other manufacturers.

When should I use a full choke tube for hunting?

Full choke delivers the tightest constriction and densest shot pattern, making it ideal for long-range shooting situations—turkey hunting, distant waterfowl, or pass-shooting scenarios where birds are 40+ yards out. For closer hunting or situations requiring a wider spread, consider a more open constriction.

Is the 17-4 stainless steel finish worth it?

17-4 stainless resists corrosion and wear better than standard finishes, especially in wet conditions or with repeated use. If you hunt in tough weather or salt-spray environments, the stainless construction adds longevity to your investment.

Do I need a tool to change Invector-Plus choke tubes?

Invector-Plus tubes are designed for hand-tight installation and removal. No special tool is required—simply unscrew the old tube and screw in the new one by hand until snug.