Browning Invector-DS 12 Gauge Modified Flush Stainless Choke Tube - Chrome

The Browning Invector-DS is a 12 Gauge flush choke tube built for Browning shotguns marked Invector-DS on the barrel. Machined from stainless steel and finished in chrome, this tube is purpose-built to control the spray pattern and deliver consistent shot strings at the range or in the field.

Invector-DS stands for Double Seal, Browning's design that adds a secondary seal ring near the muzzle in addition to the standard choke threads. The double-seal interface keeps gas and fouling out from behind the tube and helps the threads stay cleaner between cleaning cycles, so the tube seats securely and consistently shot after shot. Invector-DS tubes are also noticeably longer than standard Browning choke tubes, with extended tapers that Browning optimizes to specific pattern percentages rather than to dimension alone.

This tube is a Modified constriction with a .020 inch bore taper, designed to put roughly 45-55% of the pellets in the pattern at 40 yards. It is recommended for use out to about 45 yards, making it a versatile general-purpose choke tube. The flush mount keeps the tube seated inside the bore so it does not protrude past the muzzle, preserving a clean barrel profile.

The choke is approved for use with steel, lead, and non-toxic shot, so it works with modern non-lead loads as well as traditional lead or steel shot. The construction is non-ported for a straight-through pattern without side venting, and the polished chrome finish on the stainless steel body resists corrosion from shot residue and weather exposure.

Invector-DS tubes only fit Browning shotguns specifically marked Invector-DS on the barrel(s); they are not interchangeable with Browning Standard Invector or Invector Plus choke systems. Each purchase includes 1 choke tube.