Browning Invector-DS 12 Gauge Modified Extended Choke Tube - Stainless Steel Chrome (1134273)

The Browning Invector-DS 12 gauge modified extended choke tube brings serious engineering to shot pattern control. If you're running a Browning shotgun and want a choke that stays clean, performs consistently, and actually comes out of the barrel without a fight, the DS system is a real step up from standard tubes. The Double Seal design uses a brass alloy ring at the base to seal the gap between tube and barrel, blocking gas and residue buildup that can lock chokes in place—a common frustration that this tube is purpose-built to solve.

Browning's thin-wall construction and extended length create longer parallel bearing surfaces inside the barrel, which translates to tighter, more predictable shot patterns downrange. The modified constriction sits in that sweet spot for hunting applications where you need effective range without the density of a full choke. At 3-1/4 inches overall, this is a true extended tube, giving you the ergonomic advantage of easier removal and a cleaner profile on the muzzle. Stainless steel with chrome finish means it'll hold up to field use and wet conditions.

Whether you're running waterfowl loads, upland hunting, or clay shooting, a quality choke tube that actually functions smoothly makes a difference in the field. The Invector-DS system is one of the few that tackles the real problem: keeping the tube clean and accessible after hard use. That brass seal keeps performing even when other tubes are stuck.

Key Features

• Double Seal design with brass alloy ring prevents gas and residue buildup
• Extended length (3-1/4") for improved shot pattern performance
• Thin-wall construction maximizes parallel bearing surfaces
• Flush-mount profile for clean barrel appearance
• Stainless steel with chrome finish for durability
• Modified constriction for versatile hunting and sport shooting

Specifications

Frequently Asked Questions

Will this Invector-DS choke tube fit my Browning shotgun?

The Invector-DS system is designed for Browning shotguns equipped with the Invector-DS choke system. Confirm your barrel is Invector-DS compatible before purchasing. If you're unsure, check your shotgun's manual or contact Browning directly with your model number.

What does the Double Seal design actually do?

The brass alloy ring at the base of the tube creates a seal between the choke and the barrel wall. This blocks gas and residue from collecting in that gap, which is the primary reason chokes become difficult to remove after extended shooting. The result is a tube that stays cleaner and removes more easily, even after heavy use.

Is this a flush-mount or extended tube?

At 3-1/4 inches overall, this is an extended tube. It doesn't sit flush with the barrel muzzle; the extended profile makes it easier to grip for removal and provides more bearing surface inside the barrel for pattern control.

What choke constriction does "modified" mean for my hunting?

Modified is a mid-range constriction that works well for hunting upland birds, waterfowl at moderate range, and clay shooting. It tightens the pattern more than improved cylinder but less than full choke, making it a practical all-purpose choice for diverse hunting situations.