The Carlsons Rifled Choke Tube (brand part number 40041) turns a 20 gauge shotgun into a genuine slug gun, cut with rifling instead of a standard shot constriction. Carlsons machines it from 304 high-stress stainless steel and cuts a 1:35-inch right-hand twist into the bore, spinning a sabot slug for rifle-like accuracy at extended range. It threads to the Invector pattern and fits Winchester and other Invector-compatible barrels. Built in an extended, matte black profile, it works with standard, rifled, and sabot slugs alike.

Key Specifications

• Cut with rifling instead of a standard shot constriction.
• Machined from 304 high-stress stainless steel.
• Cuts a 1:35-inch right-hand twist.
• Threads to the Invector pattern, fits Winchester and compatible barrels.
• Built in an extended profile.
• Finished in matte black.
• Works with standard, rifled, and sabot slugs.
• Sized for 20 gauge shotguns.

Frequently Asked Questions

What slugs does this work with? Standard, rifled, and sabot slugs.

Why does the rifling matter? A 1:35-inch right-hand twist spins a sabot slug for rifle-like accuracy at extended range.

What barrels does it fit? Invector-pattern barrels, including Winchester and other compatible 20 gauge shotguns.

Buy the Carlsons Rifled Choke Tube, 20 Gauge, Invector/Winchester

Turn your 20 gauge into a genuine slug gun. Order the Carlsons choke tube from our shotgun choke tube selection at our Lubbock, Texas gun shop for fast, direct shipping.