Browning 20 Gauge Invector DS Extended Choke Tube L MOD

Proprietary differential banded gas seal eliminates residue build up and makes chokes easy to remove and install Integrated spring suspension holds the seal tight Allows expansion against the barrel wall for a perfect fit and a smooth transition for shot column entering 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