Browning 1130285 Standard Invector 20 Gauge Improved Cylinder Flush Choke Tube - 17-4 Stainless Steel

If you shoot a Browning shotgun with Invector choke tubes, you need the right constriction for your hunting or clay-shooting scenario. The Browning Standard Invector 20 Gauge Improved Cylinder Flush Choke Tube is engineered to deliver consistent, predictable patterns when you need shot to stay together without over-constricting. Built from 17-4 stainless steel and finished to a high polish, this flush-fit tube sits level with your barrel's end—no protrusion to snag brush or catch on a case.

Improved Cylinder choke offers a moderate constriction that performs well for upland hunting, trap shooting, and situations where you're working closer to medium range. The 20 gauge makes this tube ideal for hunters who prefer a lighter-recoiling shotgun or younger shooters developing their marksmanship. Because Browning maintains industry-standard constriction specs across its choke line, you can confidently swap tubes between compatible shotguns and count on repeatable, uniform shot patterns.

The stainless steel construction resists corrosion and withstands the abuse of field use—salt air, rain, bumped against truck beds, or packed in a blind. The polished finish not only looks clean but also wipes down easily after a season in the field. Whether you're running quail in Texas, pheasant in the Midwest, or shooting trap at your local range, having the right constriction in your tube makes the difference between solid shooting and frustration.

Key Features

• Improved Cylinder constriction for medium-range, versatile shotgun work
• Flush-fit design doesn't extend past the barrel muzzle
• 17-4 stainless steel for rust resistance and durability
• Highly polished finish for easy field cleaning and protection
• Fits Browning shotguns with Invector choke tube system
• Manufactured to industry-standard constriction tolerances

Specifications

Frequently Asked Questions

Will this Invector choke tube fit my Browning 20-gauge shotgun?

This Standard Invector tube is designed for Browning shotguns with Invector choke systems. Check your owner's manual or barrel marking to confirm your gun uses Standard Invector tubes rather than Invector Plus or another system.

What does Improved Cylinder choke mean for hunting or shooting?

Improved Cylinder is a moderate constriction that keeps shot reasonably together without the tighter pattern of Full or Extra-Full. It's versatile for upland hunting, clay shooting at moderate distance, and situations where you need flexibility in range without sacrificing too much pattern density.

What's the advantage of a flush-fit choke tube?

A flush-fit design sits level with the barrel's muzzle, so it doesn't snag on brush, vines, or gear when you're moving through thick cover. It also looks cleaner and is easier to handle in the field without your hand brushing a protruding tube.

Why is stainless steel important in a choke tube?

Stainless steel resists rust and corrosion, protecting your investment through seasons of hunting in wet weather, salt-air environments, or storage in damp conditions. The polished finish on this tube adds durability and wipes clean easily after use.