The Carlson’s Replacement Rifled Choke Tube (brand part number 40040) gives Winchester Invector-threaded 12 gauge shotguns a rifled bore that meaningfully improves slug accuracy from a smooth bore barrel. Carlson’s manufactures this precision tube from 304 high-stress stainless steel, a grade chosen specifically to handle the added pressure and wear of driving slugs through a rifled constriction rather than shot. The matte black finish resists glare in the field, and because it’s a direct Invector-thread replacement, it installs in seconds with the same choke wrench already in a shooter’s range bag. For hunters running a smooth bore slug gun for deer season, a rifled tube like this is one of the simplest upgrades to tighten up groups at practical slug ranges.

Key Specifications

• Features a rifled bore for improved slug accuracy from a smooth bore barrel.
• Machined from 304 high-stress stainless steel.
• Finished in matte black to resist glare.
• Chambered for 12 gauge shotguns.
• Threaded to the Winchester Invector pattern.
• Also carries the Win Choke designation used on Winchester barrels.
• Ships as one choke tube.

Frequently Asked Questions

What does a rifled choke tube do? It imparts spin on a slug for improved accuracy from a smooth bore barrel.

What thread pattern does this use? Winchester Invector.

Buy the Carlson’s Replacement Rifled Choke Tube – 12 Gauge, Winchester Invector, 304 Stainless

Tighten up your slug groups this season with a precision rifled tube. Order it from our Carlson’s lineup, part of our shotgun chokes selection, at our Lubbock, Texas gun shop for fast, direct shipping.