Johnny Stewart TSS Raptor Invector Plus 12 Gauge 17-4 PH Stainless Steel Choke Tube

The Johnny Stewart TSS Raptor is a precision Invector Plus choke tube for 12 Gauge shotguns, manufactured by Rob Roberts Gun Works from 17-4 PH stainless steel. Part of the Raptor TSS line, this choke is engineered as a wing-shooting choke, with geometry optimized to deliver consistent patterns when paired with premium tungsten shot loads. The Invector Plus threading allows direct installation in any compatible 12 Gauge shotgun fitted with Invector Plus choke threads.

Constructed from tough 17-4 PH stainless steel, the TSS Raptor is built to handle the dense shot columns produced by premium tungsten loads. Rob Roberts Gun Works specializes in performance-focused shotgun customization, computerized pattern analysis, and precision choke design, and the Raptor line reflects that expertise. The TSS model designation identifies this choke as tuned for tungsten super shot applications where consistent, dense patterns matter most.