Description
The Rob Roberts T1 Triple Threat 20 Gauge is the short-range tube in the Triple Threat lineup, and it fills the Invector thread pattern. Rob Roberts skips the old cylinder-modified-full labels and uses their own T1, T2, T3 system instead, with the T1 landing right around a skeet constriction. That open bore is exactly what you want when birds are close and moving fast, throwing a wide but uniform pattern that covers a target instead of drilling a tight knot that either misses clean or wrecks the bird.
Where the T1 Triple Threat Shines
Think close and quick. This is your choke for skeet, teal, quail, timber ducks over decoys, and any situation where the shot happens inside 25 yards or so. The wide spread gives you a bigger margin on snap shots and swinging birds, which is a big deal for anyone who doesn't get out to the range every weekend. Rob Roberts built the whole Triple Threat range around even, efficient patterns rather than the tightest possible core, and the T1 is the most open of the three.
Built to Last in the Field
Every T1 Triple Threat is machined from 17-4 PH U.S. stainless steel to tolerances well past the industry norm, which means it shrugs off moisture, mud, and the kind of abuse a duck blind dishes out. The extended profile makes it easy to grab and swap by hand, and the stainless build keeps corrosion from setting in when you don't get a chance to clean up right away. These tubes are longer than most stock and aftermarket chokes, which is part of how Rob Roberts keeps patterns consistent.
Rob Roberts has shaped the modern waterfowl gun as much as anyone, working alongside the Benelli Performance Shop and testing loads on computerized pattern analyzers to see what really works. The T1 is safe with steel, lead, and non-toxic loads, so you can pair it with whatever your gun and your hunt call for. Pattern it with your chosen load before you count on it, and you'll know exactly what it's doing on paper.
Key Specifications
- Manufacturer: Rob Roberts Gun Works
- Model: T1 Triple Threat
- Manufacturer Part Number: 200135
- UPC: 810174900446
- Gauge: 20 Gauge
- Thread Pattern: Invector
- Constriction: Short Range (roughly skeet)
- Material: 17-4 PH U.S. Stainless Steel
- Profile: Extended, Non-Ported
- Shot Compatibility: Lead, Steel, Non-Toxic
- Best Use: Skeet, Teal, Quail, Close-Range Waterfowl
- Country of Origin: USA
What’s Included
- Rob Roberts T1 Triple Threat 20 Gauge Choke Tube (Invector)
Frequently Asked Questions
What constriction is the T1 Triple Threat choke?
The T1 is the short-range tube in the Triple Threat series and lands right around a skeet constriction. Rob Roberts uses their own T1, T2, T3 naming instead of the traditional cylinder-modified-full labels. Because every barrel bore is a little different, the best move is to pattern it with your own gun and load to see exactly what it's throwing.
Will this T1 choke fit my shotgun?
This particular tube is cut for the Invector thread pattern in 20 gauge, which covers a lot of Browning and Winchester 20-gauge barrels. Rob Roberts offers the Triple Threat in several thread patterns, so double-check that your barrel takes Invector before installing. If you're not sure what your gun uses, we can help you figure it out.
Can I shoot steel and non-toxic loads through the T1 Triple Threat?
Yes. The Triple Threat tubes are safe with steel, lead, and non-toxic loads, so you're covered whether you're on the skeet range or over water. Since the T1 is an open short-range choke, it pairs well with most standard field and waterfowl loads at close distance.
Why is the T1 better for close birds than a tighter choke?
A tighter choke can put shot in a small, hard knot that either misses clean or blows up a close target. The T1 opens things up to give you a wide, even pattern with more margin for error on quick, fast-moving birds inside about 25 yards. That forgiveness makes a real difference on snap shots and swinging targets.





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