Browning Invector-DS 12 Gauge Modified Extended Choke Tube - Stainless Steel

The Browning Invector-DS choke tube is a precision-machined 12 Gauge accessory engineered for Browning shotguns equipped with the proprietary Invector-DS choke system. Invector-DS tubes feature a bronze gas seal at the base and an integrated spring suspension that keeps residue from building up between the choke and barrel, making the tube easier to install and remove after long shooting sessions.

This particular tube is a Modified constriction in an extended configuration, machined from stainless steel for corrosion resistance and long service life. Per Browning's published choke data, a Modified constriction places roughly 45 to 55 percent of the shot pellets inside the test circle at 40 yards, making it a versatile middle-of-the-road choice for hunting and sporting clays applications.

The extended design protrudes past the muzzle, which makes the choke easy to swap in the field by hand, helps protect the muzzle crown, and serves as a quick visual indicator of which constriction is currently installed. The tube threads directly into the barrel.

Invector-DS choke tubes are noticeably longer than standard Browning Invector-Plus tubes and feature threads on the muzzle end along with the distinctive bronze seal at the base. They are not interchangeable with standard Invector or Invector-Plus choke systems, so this tube is intended only for Browning shotguns chambered for the Invector-DS thread pattern. Browning builds these chokes to factory tolerances for a precise fit and consistent patterns downrange.