Johnny Stewart Rob Roberts Gun Works 200138 T3 Triple Threat Invector 20 Gauge 17-4 Ph S/S

The Johnny Stewart Rob Roberts Gun Works 200138 T3 Triple Threat Invector 20 gauge choke tube is a precision-engineered shotgun accessory built for shooters who demand consistency and durability. Crafted from 17-4 PH stainless steel, this choke tube delivers the corrosion resistance and hardness serious wingshooters need, whether you're working waterfowl, upland game, or clay targets. The Invector design is engineered to pattern reliably across a range of 20 gauge loads, and the stainless construction means you won't be babying it in the field or worrying about rust after a wet day.

The T3 Triple Threat designation speaks to versatility—this tube is designed to handle the demands of hunters and shooters who don't want to swap chokes constantly. The 17-4 PH stainless steel is a premium material choice that resists wear and corrosion far better than standard steel, so your investment stays tight and performs year after year. If you're running an Invector-equipped 20 gauge and need a choke tube that won't let you down, this is the kind of component that earns a permanent spot in your gun bag.

Rob Roberts Gun Works has built a reputation for quality components and practical design. This choke tube reflects that attention to detail—it's the kind of gear you install once and forget about, knowing it'll deliver when it matters. For 20 gauge shooters who value reliability and material quality over hype, the T3 Triple Threat Invector is worth a close look.

Specifications

Frequently Asked Questions

Will this choke tube fit my 20 gauge shotgun?

The Johnny Stewart Rob Roberts Gun Works T3 Triple Threat is designed for shotguns with Invector choke tube systems in 20 gauge. Confirm your shotgun uses Invector chokes before ordering.

Why stainless steel for a choke tube?

17-4 PH stainless steel resists corrosion and maintains hardness over time, which means the tube stays tight, performs consistently, and won't rust even with heavy use in wet conditions. It's a material choice that extends the life of the component.

What does the T3 Triple Threat designation mean?

The T3 Triple Threat is Rob Roberts Gun Works' designation for a versatile choke tube engineered to perform reliably across different shooting scenarios—hunting, sport shooting, and field use—without requiring frequent swaps.