Carlson's precision-engineered choke tube optimized for Bismuth ammunition in 20 gauge. 17-4 stainless steel construction delivers dense, devastating patterns for waterfowl and upland hunting.
The Bismuth Bone Buster choke tube represents precision engineering at its finest. Carlson's has designed this tube specifically to maximize the performance of Bismuth ammunition, delivering the dense, consistent patterns that serious waterfowl hunters demand.
17-4 Heat-Treated Stainless Steel — Built to exacting standards using CNC precision machining, this choke tube resists corrosion and maintains its dimensions through countless shots.
Extended Parallel Section — The longer parallel section inside the choke creates a more gradual constriction than conventional factory tubes, allowing shot to settle into optimal density before leaving the barrel.
Extensive testing with various Bismuth loads ensures you'll get the bone-crushing patterns this choke is named for. The Mid-Range constriction works equally well with traditional lead shot and Hevi-Shot loads, giving you versatility across multiple ammunition types.
Designed for Winchester 20 gauge shotguns. Works seamlessly with steel shot, lead shot, Bismuth, and Hevi-Shot ammunition.
Choose the Bismuth Bone Buster when you demand precision patterns and uncompromising performance in the field.