Browning 1130305 Standard Invector 20 Gauge Cylinder Flush Choke Tube, 17-4 Stainless Steel

The Browning Standard Invector 20 gauge cylinder flush choke tube gives you a reliable, no-nonsense option for shotgun patterns when you want minimal constriction. Built from 17-4 stainless steel and polished to a high finish, this choke is engineered to deliver consistent, uniform shot patterns while resisting corrosion in the field—whether you're working upland birds, running clay courses, or testing loads at the range. The cylinder constriction keeps pellets open fast, ideal for close-to-medium shooting situations where you need patterns to spread quickly.

Like all Browning Invector tubes, this choke is manufactured to industry constriction standards, so you know exactly what you're getting in terms of shot behavior. The flush-fit design means it seats cleanly at the muzzle without protruding beyond the barrel, keeping your sight picture unobstructed and your handling smooth. Stainless steel construction resists rust and is built to last through seasons of use and cleaning.

If you own a Browning shotgun with Invector choke compatibility, swapping tubes takes seconds and lets you dial in the right constriction for your load and distance. The cylinder constriction is a workhorse choice for hunters and shooters who prioritize speed and spread over tight, long-range patterns.

Key Features

• 17-4 stainless steel construction for corrosion resistance and durability
• Cylinder constriction for fast, open patterns at close to medium range
• Flush-fit design sits flush with barrel muzzle
• Polished finish resists rust in field conditions
• Manufactured to industry constriction standards for consistent performance
• Compatible with Browning shotguns equipped with Standard Invector choke system

Specifications

Frequently Asked Questions

What Browning shotguns does this choke fit?

This is a Standard Invector choke tube, so it's compatible with any Browning shotgun equipped with the Standard Invector choke system. Check your shotgun's documentation or the existing choke tube to confirm compatibility before ordering.

What does cylinder constriction mean for my shooting?

Cylinder is the least restrictive constriction available. It allows shot to open and spread quickly, making it ideal for hunting upland birds or clay targets at close to medium distances where you want a fast, wide pattern rather than a tight, long-range concentration.

Will this choke tube stick out past the end of my barrel?

No. This is a flush-fit design, which means it seats completely within the barrel muzzle without extending beyond it. This keeps your sight picture clear and your gun handling unrestricted.

What material is it made from and will it rust?

This choke is constructed from 17-4 stainless steel with a polished finish. Stainless steel resists corrosion, making it a durable choice for field use and storage in wet conditions.