Johnny Stewart Rob Roberts Gun Works 200303 Biz Raptor Invector Plus 20 Gauge 17-4 Ph S/S

The Johnny Stewart Rob Roberts Gun Works Biz Raptor Invector Plus choke tube for 20-gauge shotguns is built for shooters who demand precision and durability in the field. Machined from 17-4 PH stainless steel, this tube combines corrosion resistance with the strength needed to handle repeated shooting cycles. Whether you're fine-tuning your pattern for waterfowl, upland game, or clay shooting, a quality choke tube tailored to your 20-gauge Invector Plus platform makes a real difference in shot placement and consistency.

Invector Plus choke tubes are the standard for Beretta and Benelli shotguns, and this Rob Roberts Gun Works offering gives you a no-compromise option when you need to swap constrictions on the fly. The stainless steel construction resists rust and pitting—critical when you're working in wet conditions or storing your gun in a humid climate. Hand-finished by Rob Roberts Gun Works, these tubes reflect the kind of attention to detail that keeps a shotgun running true for years.

If you shoot a 20-gauge with Invector Plus threads, keep a Biz Raptor tube in your range bag or truck. Swapping chokes takes seconds and opens up a whole new range of shooting scenarios without buying a second barrel.

Key Features

• 17-4 PH stainless steel construction resists corrosion and wear
• Designed for Invector Plus threaded choke systems on 20-gauge shotguns
• Precision-machined for reliable fit and repeatability
• Hand-finished quality from Rob Roberts Gun Works

Specifications

Frequently Asked Questions

Will this choke tube fit my 20-gauge shotgun?

This tube is built for shotguns with Invector Plus threading. Check your shotgun's choke system—Beretta and Benelli 20-gauges commonly use Invector Plus. If you're unsure, verify your gun's manual or reach out to the manufacturer.

What makes stainless steel choke tubes better?

17-4 PH stainless steel resists rust and corrosion far better than standard steel, especially in wet conditions or salty environments. It's also harder and more durable, which means your choke tube will perform consistently over thousands of rounds without pitting or degradation.

Can I use this for hunting and clay shooting?

Yes. A quality choke tube like this works for any 20-gauge Invector Plus shotgun, whether you're hunting upland game, ducks, or shooting clays at the range. Swapping chokes lets you adjust your pattern to suit different scenarios and distances.