Carlson’s Bismuth Bone Buster Browning Invector Plus 12 Gauge Choke

The Carlson’s Bismuth Bone Buster Choke Tube (brand part number 09204) is CNC-machined from 17-4 heat-treated stainless steel and built specifically to produce dense, consistent patterns with Bismuth shotshells. A longer parallel section inside the choke, compared to a conventional factory tube, gives Bismuth’s harder pellets a more controlled release for tighter patterns downrange. It’s threaded for the Browning Invector Plus system and sized for 12 gauge shotguns in a mid-range constriction. While it’s purpose-built for Bismuth, this choke also performs well with lead, Hevi-Shot, and steel shot loads.

Key Specifications

• Optimized for Bismuth shotshells.
• CNC-machined from 17-4 heat-treated stainless steel.
• Features a longer parallel section than conventional factory chokes.
• Also compatible with lead and Hevi-Shot loads.
• Mid-range constriction works with all steel shot too.
• Chambered for 12 gauge shotguns.
• Threaded for the Browning Invector Plus system.

Frequently Asked Questions

What shot types can I use with this choke? It’s optimized for Bismuth but also works with lead, Hevi-Shot, and steel shot.

What thread pattern does it use? Browning Invector Plus.

What gauge is this choke for? 12 gauge.

Buy the Carlson’s Bismuth Bone Buster Browning Invector Plus Choke

Carlson’s engineered this choke specifically around Bismuth’s unique pellet hardness, so you get patterns a generic factory tube can’t match. It’s a smart pickup for Invector Plus shooters who load Bismuth for waterfowl or upland hunting. Shop more Carlsons parts or browse our full shotgun chokes selection to complete your setup. Order it from our Lubbock, Texas gun shop for fast, reliable shipping.