The Johnny Stewart Rob Roberts Gun Works 200283 Biz Raptor Invector 12 Gauge 17-4 PH Stainless Steel choke tube is purpose-built to deliver consistent, dense patterns with modern bismuth and traditional lead shot. Machined from durable 17-4 PH stainless steel and marked "Invector Lead Or Bismuth" on the body, it integrates cleanly with Invector-pattern 12 gauge shotguns for reliable performance season after season.

This Biz Raptor choke is a dedicated accessory for shooters who rely on bismuth loads for waterfowl or upland hunting, while still remaining compatible with lead. Its precision-engineered constriction and robust stainless construction make it well suited for demanding field use and regular range practice. The design reflects Rob Roberts Gun Works’ focus on pattern optimization and Johnny Stewart’s reputation for thoughtful, performance-driven firearm accessories.

Key Features:

• Manufacturer: Johnny Stewart
• Model: Biz Raptor Invector 12 Gauge
• Gauge: 12 Gauge
• Material: 17-4 PH Stainless Steel
• Choke Configuration: Invector
• Compatible Shot Types: Lead Or Bismuth