Browning 1130273 Standard Invector 12 Gauge Modified Choke Tube - 17-4 Stainless Steel

The Browning Standard Invector 12 gauge modified choke tube gives you a reliable, field-tested way to dial in your shotgun's shot pattern for upland hunting, clay sports, or waterfowl work. Built from 17-4 stainless steel and polished to a smooth finish, this choke tube handles the rigors of the field while resisting corrosion and wear. The modified constriction sits in the middle of the tightness spectrum—tighter than improved cylinder, looser than full—making it a versatile choice for medium-range shooting when you want good pattern density without sacrificing pellet spread.

Browning's Standard Invector tubes are engineered to industry constriction standards, so you know exactly what you're getting. The flush design means it won't stick out past your barrel, keeping your gun trim and snag-free in brush or when shouldering. Installation is straightforward: simply screw it into your Browning shotgun's Invector choke tube system, and you're ready to pattern and shoot. The 17-4 stainless construction means this tube will outlast many shotguns—it doesn't rust, doesn't pit, and cleans up easily after a day in wet conditions.

Whether you're working on a complete set of Invector tubes for different hunting scenarios or replacing a worn choke, this modified tube is a solid foundation. It pairs well with cylinder and tighter constrictions to give you flexibility without breaking the bank. Browning tubes are made to spec, so you can count on consistent patterns and fit every time.

Key Features

• Modified constriction for balanced shot spread and pattern density
• 17-4 stainless steel construction resists corrosion and field wear
• Flush-fit design—sits flush with barrel end
• Engineered to Browning Invector system standard specifications
• Easy to install and remove for quick adjustments in the field

Specifications

Frequently Asked Questions

What shotguns will this Invector choke tube fit?

This Standard Invector tube is designed for Browning shotguns equipped with the Invector choke tube system. Confirm your gun accepts Standard Invector tubes before purchasing.

When should I use a modified choke tube?

A modified choke offers a good middle ground for upland hunting, waterfowl at moderate range, and clay shooting. It's tighter than improved cylinder for denser patterns at distance, but more open than full chokes for better spread at closer ranges.

Why 17-4 stainless steel?

17-4 stainless resists rust and corrosion in wet field conditions, maintains a polished finish, and is durable enough to handle thousands of rounds without pitting or degradation. It's a premium material that ensures your choke tube lasts.

Does the flush fit affect performance?

No. The flush design means the tube sits even with your barrel exit, providing a clean, snag-free profile in brush or when handling. It does not impact how the choke patterns—only how it sits on the gun.