Carlsons Bismuth Bone Buster 20 Gauge MobilChoke .025 Mid-Range Choke Tube - Beretta/Benelli

The Carlson's Bismuth Bone Buster choke tube is purpose-built to unlock the full performance of modern bismuth shotgun ammunition in 20 gauge shotguns. Specifically engineered for the unique ballistics of bismuth shot, this choke is designed to produce excellent, dense, consistent patterns at medium ranges, making it an excellent choice for waterfowl hunters and shotgunners running non-toxic loads.

Machined from 17-4 heat-treated stainless steel using CNC precision processes, the Bone Buster features a longer parallel section inside the choke compared to conventional tubes. This extended parallel section helps shape tighter, more uniform patterns with bismuth pellets, which behave differently than traditional lead shot. The result is improved pattern density and energy retention on target.

This model is configured for Beretta and Benelli MobilChoke systems, making it a direct drop-in replacement for factory choke tubes on compatible 20 gauge shotguns. It carries a Mid-Range constriction of .025", well suited for medium-range waterfowl and upland applications where a balance of pattern spread and downrange energy is needed.

Like all Carlson's choke tubes, the Bismuth Bone Buster is engineered for years of reliable service in the field. One choke tube is included.