Browning 1133763 Invector-DS 16Gauge Improved Modified Extended Stainless Steel
The Browning Invector-DS 16-gauge improved modified extended choke tube is a stainless steel choke designed for shooters running Browning shotguns with Invector-DS choke systems. This extended tube delivers the tighter shot pattern of an improved modified constriction—ideal for medium-range hunting scenarios where you need better pellet density than a modified choke alone, but without the extreme constriction of full. The stainless steel construction resists corrosion from moisture and repeated use, making it a durable choice for upland hunting, clay shooting, or any situation where you're pushing your effective range a bit further downrange.
Extended chokes like this one offer a practical advantage over flush designs: they're easier to grip, swap, and index by hand, especially when you're wearing gloves or working quickly in the field. The Invector-DS system is Browning's modern choke standard, so compatibility is straightforward if your 16-gauge Browning shotgun came equipped with it. Whether you're fine-tuning your pattern for ducks, pheasants, or targets, having a quality improved modified tube in your rotation lets you dial in the right density for your load and distance.
Browning choke tubes are manufactured to tight tolerances and backed by the brand's reputation for reliability. A stainless steel choke resists the wear and corrosion that can eventually compromise a blued tube, so it's a smart long-term investment if you shoot regularly or in wet conditions.
Key Features
- Invector-DS system compatibility for modern Browning 16-gauge shotguns
- Improved modified constriction for balanced shot density at medium range
- Extended profile for easier handling and quicker changes
- Stainless steel construction resists rust and corrosion
Specifications
| Gauge | 16 |
| Choke Type | Improved Modified |
| System | Invector-DS |
| Material | Stainless Steel |
| Profile | Extended |
Frequently Asked Questions
Will this choke fit my Browning 16-gauge shotgun?
This choke is designed for Browning shotguns equipped with the Invector-DS choke system. If your 16-gauge Browning is an older model or uses a different choke standard, this tube will not be compatible. Check your shotgun's manual or the choke tube already installed to confirm you have Invector-DS before ordering.
What's the difference between improved modified and other chokes?
Improved modified sits in the middle of the constriction spectrum. It tightens your pattern more than a modified choke but less than a full choke, making it versatile for hunting at moderate distances where you want better pellet concentration than wider chokes provide, without sacrificing too much open coverage.
Why choose stainless steel over standard blued chokes?
Stainless steel resists rust and corrosion far better than blued steel, especially if you hunt in wet conditions or store your shotgun in humid environments. Over time, a quality stainless choke will outlast a standard blued tube and maintain its finish with minimal maintenance.
Is this an extended or flush choke?
This is an extended choke tube, meaning it protrudes slightly from the muzzle. Extended tubes are easier to grip, remove, and swap in the field, though they do change the shotgun's visual profile slightly compared to flush-mounted options.

