Description
Carlson's Flush Mount Modified Choke Tube is a smart pickup for anyone running a Beretta or Benelli Mobil-style 20 gauge who wants a versatile pattern without swapping constrictions all day. It drops in at a .600 diameter with a Modified profile, which is the sweet spot between an open pattern and a tight one. That translates to reliable pellet density from roughly 26 to 42 yards, so it covers a lot of ground whether you're walking up pheasants or breaking mid-range crossers on a sporting clays course.
Where the Modified Choke Earns Its Keep
Modified is the choke a lot of folks leave in the gun as a general-purpose setup, and for good reason. It gives you enough spread to connect on decoying birds and closer targets while still holding a pattern together out past 40 yards. Upland hunters chasing flushing birds and clay guys shooting a course with inconsistent target distances tend to get along great with it. Pair it with your usual 7/8 ounce loads and you've got a setup that handles most of what a day throws at you.
Built to Last, Sized to Disappear
This tube is CNC-milled from solid 17-4 heat-treated stainless steel, the same material Carlson's uses across their lineup for corrosion resistance and a long service life. The flush-mount design means it sits even with the muzzle, keeping your barrel clean-looking and snag-free. Steel, lead, and Hevi-Shot all run fine through the Modified constriction, so you're not boxed into one type of load.
A Choke That Fits the Mobil System
This one is machined for the Beretta/Benelli Mobil pattern, which also covers Benelli Standard and Franchi Standard tube setups. It's made in the USA and backed by Carlson's lifetime warranty, so if it ever takes damage they'll square you away with a replacement. For a mid-range choke you can trust shot after shot, it's tough to beat the value here.
Key Specifications
- Manufacturer: Carlson's Choke Tubes
- Manufacturer Part Number: 50614
- UPC: 723189506148
- Gauge: 20 Gauge
- Constriction: Modified
- Diameter: .600
- Style/Fit: Beretta/Benelli Mobil (also Benelli Standard, Franchi Standard)
- Mount Type: Flush Mount
- Material: 17-4 Heat-Treated Stainless Steel
- Shot Compatibility: Steel, Lead, and Hevi-Shot
- Country of Origin: Made in USA
- Warranty: Lifetime
What’s Included
- Carlson's Flush Mount Modified Choke Tube (20ga, Mobil, .600)
- Standard choke tube wrench
Frequently Asked Questions
What shotguns does this Carlson's Modified choke tube fit?
This tube is machined for the Beretta/Benelli Mobil choke system, which is one of the most common 20 gauge patterns out there. It also fits guns using the Benelli Standard and Franchi Standard tube series. If your 20 gauge takes Mobil-style tubes, this one drops right in and sits flush with the muzzle.
What range and use is a Modified choke best for?
Modified is the versatile middle ground and generally patterns well from about 26 to 42 yards. It's a great all-around pick for upland birds, decoying waterfowl at moderate distance, and mid-range clay targets. A lot of hunters just leave it in the gun as their go-to constriction because it handles so many situations.
Can I run steel shot through this choke?
Yes, steel, lead, and Hevi-Shot all run fine through the Modified constriction. As a general rule with Carlson's tubes, avoid steel shot larger than #BB or velocities over 1550 fps in anything tighter than full, but Modified gives you plenty of room to work with common loads.
Is this choke tube durable and does it come with a warranty?
It's CNC-milled from solid 17-4 heat-treated stainless steel, so it holds up to corrosion and heavy use. Carlson's backs it with a lifetime warranty and it's made in the USA. If it ever gets damaged, you can send it back for a replacement.




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