Browning - Invector-DS

12 gauge-Light Modified-Nickel chrome moly-Extends beyond end of barrel for easy removal and even tighter patterns-Proprietary differential banded gas seal eliminates residue build up and makes chokes easy to remove and install-Integrated spring suspension holds the seal tight, yet allows expansion against the barrel wall for a perfect fit and a smooth transition for the shot column entering the choke-Gas is controlled at the interface between choke and where it seats in the bore-From skeet to full choke, patterns tighten consistently and reliably