Specifications and Features:

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 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

Fits Invector DS specific models only. Not interchangable with normal Invector/Invector Plus systems.