Carlson's Choke Tubes 09215 Bismuth Bone Buster Benelli/Beretta MobilChoke 20 Gauge Extended Range 17-4 Stainless Steel

The Carlson's Choke Tubes 09215 Bismuth Bone Buster is a 20 gauge extended range choke tube engineered specifically for waterfowlers and upland hunters who rely on Benelli and Beretta MobilChoke shotguns. Built from 17-4 stainless steel, this tube delivers the toughness needed for bismuth shot loads while maintaining reliable performance across repeated hunting seasons. If you're pushing the effective range of your 20 gauge or hunting heavy cover where dense patterns matter, this choke is built to pattern bismuth shot the way it was designed to perform.

Bismuth ammunition has become the go-to nontoxic option for many regions, and not every choke tube handles it the same way. Carlson's engineered the Bone Buster specifically for bismuth's ballistic characteristics, so you get predictable, tight patterns without the guesswork of adapting a general-purpose tube. The 17-4 stainless construction resists corrosion and the wear that comes from repeated cycling and the slightly abrasive nature of bismuth pellets.

Installation is straightforward on any Benelli or Beretta shotgun with MobilChoke threads—no special tools or gunsmithing required. Swap it in, pattern your load at the range, and you're ready to hunt. This is the kind of focused, single-purpose tool that serious waterfowlers and dedicated upland hunters appreciate: one choke, one job, done well.

Key Features

• 17-4 stainless steel construction for durability and corrosion resistance
• Optimized for bismuth shot loads at extended range
• Compatible with Benelli and Beretta MobilChoke systems
• 20 gauge threading

Specifications

Frequently Asked Questions

Will this choke tube fit my Benelli or Beretta shotgun?

Yes—the Carlson's 09215 is threaded for MobilChoke systems found on Benelli and Beretta shotguns. Simply screw it into your barrel's MobilChoke socket.

Can I use this choke tube with steel shot or other nontoxic loads?

This choke is specifically engineered for bismuth ammunition. Always consult your shotgun's manual and ammunition manufacturer's guidance before using any choke tube with different shot types.

What gauge is this choke tube?

This is a 20 gauge choke tube, designed for 20 gauge shotguns only.

What makes this different from a standard choke tube?

The Bone Buster is optimized for extended-range performance with bismuth shot, and its 17-4 stainless steel construction is engineered to handle bismuth's properties without premature wear.