Product Overview
Carlson’s Bismuth Bone Buster 09215 MobilChoke is a 20 Gauge Extended Range choke tube precision machined from 17-4 heat-treated stainless steel. It is designed to produce dense, consistent patterns with bismuth ammunition and is also compatible with lead and Hevi-Shot. For Extended Range use the choke accepts steel shot not larger than 2, making it suitable for a range of field applications.
Key Specifications
- The model/part number is 09215.
- Compatible platform description is Berretta/Benelli Mobil.
- The configuration is MobilChoke.
- The caliber/gauge is 20 Gauge.
- The material is 17-4 Stainless Steel.
- The constriction type is Extended Range.
- The constriction diameter is .040.
- Chokes included: One Choke.
- Optimized for bismuth ammunition and compatible with lead and Hevi-Shot.
- Extended Range use supports steel shot not larger than 2.
Built for shooters who prioritize pattern consistency and corrosion-resistant construction, this extended-range choke balances durable 17-4 stainless steel construction with a longer internal parallel section to support tighter shot columns. Its compatibility with multiple shot types makes it a practical choice for field use where pattern density and reliability matter.









