Browning 1133773 Invector-DS 16Gauge Modified Extended Stainless Steel

The Browning Invector-DS 16-gauge modified extended choke tube in stainless steel is a precision shot-control accessory built for shooters who want reliable pattern consistency without breaking the bank. If you're running a Browning shotgun with Invector-DS threading and need a modified constriction for waterfowl, upland game, or clay shooting, this tube delivers the geometry and corrosion resistance that matter in the field—whether you're hunting wet marshes or shooting in coastal spray.

Extended choke tubes offer real practical advantages: they're easier to grip and swap in the field than flush-mounted options, and the stainless steel construction resists rust in humid or saltwater environments where standard steel can fail. The modified constriction sits in the middle of the shot-control spectrum, making it versatile enough for a range of shotgun situations where you need tighter patterns than improved cylinder but more open coverage than full choke.

This is a genuine Browning part—made to Browning's tolerances and designed to work seamlessly with your shotgun's barrel. It's the kind of straightforward, no-nonsense accessory that serious shotgun shooters keep in their kit because it works, it lasts, and you don't have to think about it.

Key Features

• Modified constriction for versatile shot patterns
• Extended design for easier field handling and removal
• Stainless steel construction resists corrosion and rust
• Invector-DS compatible threading
• Genuine Browning original part

Specifications

Frequently Asked Questions

What shotguns does this choke tube fit?

This tube is designed for Browning shotguns with Invector-DS choke threading. Check your barrel or owner's manual to confirm your shotgun uses the Invector-DS system before ordering.

What is a modified choke tube used for?

Modified constriction provides a tighter pattern than improved cylinder but opens up more than full choke, making it effective for upland hunting, waterfowl at moderate range, and clay shooting situations where you need a middle-ground shot spread.

Why choose stainless steel over standard choke tubes?

Stainless steel resists rust and corrosion, which is especially valuable if you hunt in wet, humid, or saltwater environments where standard steel can degrade over time.

Is this an extended or flush choke tube?

This is an extended choke tube, which means it protrudes slightly from the barrel for easier gripping and removal in the field compared to flush-mounted options.