Deep cut, constant twist rifling gives 12 and 20 gauge slugs the spin needed for vastly improved accuracy. Four models fit most screw-in choke systems.
SPECS: Stainless steel. Extends 1-3⁄16" (3cm) beyond barrel. Win-Choke® fits Browning Invector (does not fit Invector Plus), S&W, others. Beretta/Benelli fits 3rd. Generation Benelli barrels only.
Catalog page 185