Carlson's Remington 870 12 Gauge 3" Barrel, 18.5" Rem Choke Cylinder with Adjustable Sights

A Carlson's replacement barrel gives your Remington 870 12 gauge a fresh lease on life—or lets you configure it for a specific mission. This 18.5" Rem Choke Cylinder barrel with adjustable sights transforms your 870 into a tighter, faster-handling platform ideal for home defense, tactical work, or close-range hunting. Built from certified ordnance-grade 4140 steel with a chrome-lined bore, it's built to last through thousands of rounds without premature wear.

The adjustable sights let you dial in your point of aim whether you're running a bead or ghost-ring setup, and the ramped front sight design gives you a clean sight picture in bright or low light. The Rem Choke system threading means you can swap between cylinder, improved, and modified tubes to match your ammunition and target distance in seconds. This barrel arrives with a Cylinder choke tube manufactured from 17-4 stainless steel—tough, corrosion-resistant, and ready to go.

Carlson's barrels are engineered to fit Remington 870 12-gauge receivers. Whether you're building a dedicated defense gun, a truck gun, or simply want a second barrel for different loads and conditions, this is a straightforward, no-gunsmithing swap. The matte finish resists glint and plays well with tactical gear or hunting camo.

Key Features

• Ordnance-grade 4140 steel with chrome-lined bore for durability and corrosion resistance
• Adjustable sights for reliable target acquisition in any light
• Threaded for Rem Choke system—swap choke tubes to adjust pattern and range
• Includes Cylinder choke tube (17-4 stainless steel)
• Ramped front sight design for rapid sight alignment
• Matte finish minimizes glint
• Drop-in fit for Remington 870 12-gauge models

Specifications

Frequently Asked Questions

Will this barrel fit my Remington 870?

Yes, if you own a Remington 870 12-gauge. This barrel is a direct replacement—no modifications or gunsmithing required.

What choke tubes can I use with this barrel?

This barrel is threaded for the Rem Choke system, so you can use any standard Rem Choke tube. It arrives with a Cylinder choke installed, and you can swap to Improved, Modified, or other Rem Choke options to fine-tune your pattern.

Is the cylinder choke tube included?

Yes. The barrel ships with one Cylinder choke tube made from 17-4 stainless steel ready to install.

What are the adjustable sights good for?

The adjustable ramped front sight allows you to set your point of aim precisely, whether you're using a traditional bead, ghost-ring rear sight, or aiming down rails. It works in daylight and low-light conditions.