The Carlsons 51203 Remington flush choke tube in 20-gauge Modified constriction is a drop-in replacement for Remington shotguns equipped with Rem Choke threads. Built from 17-4 heat-treated stainless steel, this choke delivers consistent, reliable performance whether you're shooting steel, lead, or premium loads like Hevi-Shot. The flush-mount design keeps your sight picture clean and your shotgun's profile sleek—a practical choice for hunters and sport shooters who demand durability without fuss.

Modified constriction strikes a useful middle ground between tighter full chokes and more open improved cylinder tubes, making it versatile enough for upland birds, waterfowl, and clay shooting across a range of distances and shot sizes. Since it's manufactured in the USA and backed by Carlson's Lifetime Warranty, you're investing in a choke tube built to outlast the shotgun it's installed in.

Compatibility is straightforward: this choke fits Remington shotguns with the standard Rem Choke system. Steel shot larger than #BB or velocities exceeding 1550 fps should not be used in chokes tighter than full, and if you're running a turkey-specific load, stick to steel shot #4 or larger. Beyond those guidelines, this is a no-fuss upgrade for 20-gauge shooters who want a quality American-made choke at a fair value.

Key Features

• 17-4 heat-treated stainless steel construction for long-term durability
• Flush-mount design maintains clean sightlines and streamlined profile
• Compatible with steel, lead, and Hevi-Shot ammunition
• Modified constriction for versatile hunting and sport shooting
• Lifetime Warranty backed by Carlson's
• Made in the USA

Specifications

Brand	Carlsons
Model	51203
Gauge	20
Constriction	Modified
Choke System	Rem Choke (Remington)
Material	17-4 Heat Treated Stainless Steel
Mount Style	Flush
Warranty	Lifetime
Origin	Made in the USA

Frequently Asked Questions

Will this choke tube fit my Remington shotgun?

The Carlsons 51203 is designed for Remington shotguns equipped with the Rem Choke threading system. Confirm your shotgun uses Rem Choke threads before ordering.

What ammunition types can I use with this 20-gauge Modified choke?

Steel, lead, and Hevi-Shot are all compatible. However, do not use steel shot larger than #BB or loads exceeding 1550 fps in chokes tighter than full constriction. For turkey loads, avoid steel shot larger than #4.

Is this a flush-mount or extended choke tube?

This is a flush-mount design, meaning it sits flush with the end of your barrel for a clean, streamlined appearance.

Does Carlsons offer a warranty on this choke tube?

Yes. The Carlsons 51203 is backed by a Lifetime Warranty.