The Carlson’s Bismuth Bone Buster choke tube is engineered to produce dense, consistent patterns when used with Bismuth ammunition. It is CNC precision machined from 17-4 heat-treated stainless steel and features an extended parallel section inside the choke to improve pattern uniformity compared with many factory tubes. The Mid-Range constriction is specified for compatibility with steel shot and has been tested with a variety of non-lead loads. This tube is supplied as a single unit and is built for durability and repeatable performance.
Key Specifications
- The brand is Carlsons.
- The model is the Bismuth Bone Buster choke tube.
- Designed for 20 Gauge shotguns.
- Constructed from 17-4 Stainless Steel.
- The constriction type is Mid-Range.
- The constriction diameter measures .025.
- Configuration is Invector.
- Compatibility includes Bismuth, lead, Hevi-Shot, and steel shot.
- Package includes One Choke.
Precision machining and the extended internal profile deliver consistent mid-range patterns with alternative shot types, making this choke a practical option for field use where non-lead shot is required. Its 17-4 stainless construction provides durability for regular service, and the single-tube configuration keeps installation straightforward for compatible Invector 20 Gauge systems.
