Elevate your 20‑gauge shotgun performance with the Iver Johnson Choke Tube 20GA – Modified Mobil Choke (20GA‑MOD). Engineered for precision, this high‑quality choke delivers a consistent modified pattern that balances pellet density and spread, making it ideal for both bird hunting and target shooting. Backed by Iver Johnson’s legacy of reliability, this choke tube ensures repeatable results shot after shot.
Key Benefits & Features
- Optimized Modified Pattern: Produces a 30‑inch pattern at 40 yards with a tight, dense core for superior hit probability.
- Durable Construction: CNC‑machined steel body with a corrosion‑resistant finish for long‑term durability.
- Easy Installation: Threaded design fits standard 20‑gauge Iver Johnson receivers without the need for additional tools.
- Consistent Shot Placement: Reduces pellet spread variance, delivering reliable accuracy across a variety of loads.
- Versatile Use: Perfect for upland bird hunting, waterfowl, and competitive clay target shooting.
- UPC: 796167791263 – Easily track inventory and ensure authenticity.
Technical Specifications
| Gauge | 20 GA |
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| Choke Type | Modified (Mobility‑Optimized) |
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| Thread Size | Standard Iver Johnson 20GA |
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| Material | High‑strength steel, black oxide coating |
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| Length | 1.25 in (31.7 mm) |
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| Weight | 0.12 lb (55 g) |
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| UPC | 796167791263 |
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| Manufacturer | Iver Johnson |
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Compatibility & Installation
This choke tube is compatible with all Iver Johnson 20‑gauge shotguns that use the standard choke thread. Installation is straightforward:
- Ensure the barrel is clean and free of debris.
- Align the choke’s thread with the barrel’s choke opening.
- Turn the choke clockwise until snug – do not overtighten.
- Verify alignment by checking for a smooth, even pattern at the range.
For best results, pair with high‑quality 20‑gauge shells and regularly clean the choke to maintain optimal performance.
Why Choose Iver Johnson?
Iver Johnson has been a trusted name in firearms for over a century. Their choke tubes are renowned for:
- Precision engineering and tight tolerances.
- Rigorous quality control processes.
- Exceptional value without compromising on performance.
Customer Reviews
"The modified pattern on this Iver Johnson choke is spot‑on. My goose season has never been better!" – John D., Professional Waterfowl Hunter
"Reliable, easy to install, and the pattern stays consistent even after 500 rounds." – Lisa M., Competitive Skeet Shooter
Warranty & Support
Every Iver Johnson choke tube comes with a lifetime warranty against manufacturing defects. Our dedicated support team is ready to assist with any installation or performance questions.
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