Browning 1133963 Invector-Plus 12Gauge Improved Modified Extended Stainless Steel

The Browning Invector-Plus 12-gauge improved modified extended choke tube is a stainless steel replacement choke built to deliver consistent performance and longevity in shotguns equipped with Browning's Invector-Plus choke system. Whether you're fine-tuning your shot pattern for upland hunting, clay sports, or waterfowl, this improved modified constriction sits in the middle of the spectrum, offering a balance between pellet density and spread that works across a range of hunting and shooting scenarios. The extended profile gives you more leverage for hand removal, and the stainless steel construction resists corrosion—especially valuable if you're shooting in wet conditions or storing your gun long-term.

Invector-Plus chokes are the standard for modern Browning shotguns, and they're also found on many other quality production shotguns. If you own a Browning shotgun with an Invector-Plus choke system and want to experiment with different constrictions or simply replace a worn tube, this improved modified choke is a straightforward upgrade. The stainless steel finish is both functional and durable, standing up to salt spray, humidity, and repeated cleaning cycles better than blued steel.

This is a single replacement choke tube—not a set. If you're building out a choke collection for different shooting situations, you'll want to consider your other tubes and what gaps you're filling. The improved modified constriction is popular for general-purpose upland work and mid-range clay targets because it holds shot reasonably tight without over-constricting for closer presentations.

Key Features

• Stainless steel construction for corrosion resistance and durability
• Improved modified constriction for balanced pellet density and pattern spread
• Extended profile for easier hand removal and installation
• Fits Browning Invector-Plus choke systems

Specifications

Frequently Asked Questions

Which Browning shotguns use Invector-Plus chokes?

Browning's modern shotgun lineup—including the A5, Maxus, BRX, and B725 models—uses the Invector-Plus system. Check your owner's manual or the markings on your existing choke tube to confirm compatibility. Some older Browning models use the original Invector (without the "Plus"), which is not compatible with Invector-Plus tubes.

What's the difference between improved modified and other constrictions?

Choke constrictions range from cylinder (least restrictive) to extra full (most restrictive). Improved modified falls toward the tighter end but is not as tight as modified full or extra full. This makes it useful for hunting situations where you need a reasonably dense pattern—such as upland game at moderate distances or clay targets—without over-constricting at closer ranges.

Why choose stainless steel over blued steel chokes?

Stainless steel resists rust and corrosion significantly better than blued steel, especially in humid, wet, or saltwater environments. If you hunt waterfowl, fish coastal areas, or live in a damp climate, stainless steel will maintain its finish and function longer with less maintenance.

Is this a single choke tube or a set?

This is a single replacement choke tube. If you're looking to build a complete choke collection for your shotgun, you'll need to purchase additional tubes in other constrictions separately.