Browning 1133873 Invector-DS 20Gauge Modified Extended Stainless Steel
The Browning Invector-DS 20-gauge modified extended choke tube is a stainless steel option built for shooters who want reliable pattern control and corrosion resistance in a 20-gauge shotgun. This extended choke works with Browning shotguns that use the Invector-DS platform, giving you the modified constriction you need for upland hunting, clay target shooting, or general sport use. Stainless steel construction stands up to moisture and harsh conditions, making it a smart upgrade for anyone shooting in wet weather or coastal environments.
Extended choke tubes offer a practical advantage: they're easier to grip and swap in the field compared to flush-mounted designs. The modified constriction delivers a tighter pattern than improved cylinder while remaining forgiving enough for moving targets at typical hunting ranges. If your Browning shotgun came with standard Invector-DS tubes and you want better durability or prefer the ergonomics of an extended design, this is a direct replacement that maintains full compatibility with your gun.
Browning's Invector-DS line is engineered to deliver consistent performance across a wide range of loads and shot types. The stainless steel finish resists rust and corrosion without sacrificing durability, so you can confidently run this choke tube season after season.
Key Features
- Browning Invector-DS 20-gauge compatibility
- Modified constriction for balanced pattern density
- Extended design for easy field handling and removal
- Stainless steel construction for corrosion resistance
- Drop-in replacement for standard Invector-DS tubes
Specifications
| Gauge | 20 |
| Choke Type | Modified |
| Platform | Browning Invector-DS |
| Style | Extended |
| Material | Stainless Steel |
Frequently Asked Questions
Will this choke tube fit my Browning shotgun?
This is an Invector-DS choke tube. It will fit Browning shotguns with the Invector-DS platform. Check your owner's manual or the markings on your gun's barrel to confirm you have Invector-DS compatibility before ordering.
What's the difference between modified and other choke constrictions?
Modified choke sits between improved cylinder and full constriction, delivering a tighter, denser pattern than improved cylinder while remaining open enough for hunting moving targets or clays at typical field distances. Your choice should depend on your shooting distance and target type.
Why choose an extended choke tube over a flush design?
Extended tubes stick out beyond the barrel, making them much easier to grip, identify, and change in the field without tools. Many shooters find them more practical for hunting or frequent shooting sessions where choke changes are part of the workflow.
Will stainless steel resist rust better than blued choke tubes?
Yes. Stainless steel resists corrosion and moisture far better than blued steel, making it a worthwhile upgrade if you hunt in wet conditions, coastal environments, or store your shotgun in humid climates.

