Carlsons Carl 41037 Core Brn Invector Plus 12ga Long Range
- Caliber-Gauge:
- 12 Gauge
The Carlson's Core Brown Invector Plus 12-gauge long-range shotgun choke tube delivers the tight constriction serious waterfowl and upland hunters need when distance matters. Part of Carlson's CORE Series—engineered to handle everything from novice shooters to seasoned pros—this long-range choke is rated Full constriction and throws dense, consistent patterns at extended yardages. It's designed to work reliably with all modern shot types: lead, steel, bismuth, Tungsten/TSS, and specialty loads like Hevi-Shot, Matrix, and duplex blends.
Built for hunters who need to maximize effective range without chasing a different choke for every situation, the Core Series keeps things simple. The choke's constriction is laser-etched directly on the head, and Carlson's includes a yardage guide on the packaging to remove the guesswork from choke selection—critical when you're evaluating lead versus steel performance at the same distance. The Invector Plus threading ensures a secure fit in compatible Browning shotguns.
Whether you're setting up for late-season ducks, geese, or hunting open country where birds flush at distance, this choke trades some of the flexibility of tighter modified options for the dense patterns long-range shooting demands. It's a solid, no-nonsense choice for hunters who've settled on a long-range load and want one choke to trust in the field.
Key Features
- Full constriction for long-range pattern density
- Laser-etched constriction marking on choke head for field identification
- Compatible with lead, steel, bismuth, Tungsten/TSS, Hevi-Shot, Matrix, and duplex loads
- Invector Plus threading for Browning shotgun compatibility
- Yardage reference guide included to aid choke selection
- Brown finish
Specifications
| Gauge | 12 |
| Choke Constriction | Long Range / Full |
| Threading | Invector Plus |
| Finish | Brown |
| Recommended Lead Shot Yardage | 30–45 yards |
| Recommended Steel Shot Yardage | 40+ yards |
| Recommended Shot Sizes | BB–10 (lead and steel) |
| Slug Compatible | No |
Frequently Asked Questions
What shotguns use Invector Plus choke tubes?
Invector Plus threading is standard on Browning shotguns. Check your shotgun's manual or markings to confirm compatibility before purchasing.
Can I use this choke with steel shot and bismuth?
Yes. The Core Series long-range choke is rated for steel, bismuth, Tungsten/TSS, Hevi-Shot, and specialty blends, as well as traditional lead loads.
What yardage range should I expect from this choke?
With lead shot, expect effective range of 30–45 yards; with steel shot, 40 yards and beyond. The included yardage guide provides more detailed performance data by shot size.
Can I use this choke to shoot slugs?
No. Slugs may only be used with the Close Range / Improved Cylinder choke in the Core Series lineup.

