Remington 870 Express & Fieldmaster Barrel – 12 Gauge – 21" – 3" Chamber

Factory Precision. Field Versatility. Made for the 870.

Elevate your Remington 870 Express or 870 Fieldmaster with this factory-original 21" 12-gauge barrel, engineered for reliable field performance, smooth cycling, and choke flexibility. Whether you're chasing upland birds, hitting the range, or refining your fit and balance, this genuine Remington replacement barrel is built to perform with the legendary consistency of the 870 platform.

Key Features

• 21-Inch Barrel Length
  The ideal mid-length barrel for hunters and clay shooters wanting maneuverability without compromising control or pattern performance.

• 3" Chamber
  Handles both 2-3/4" and 3" shells on compatible Magnum receivers. Use 2-3/4" shells only with standard (non-Magnum) receivers.

• Bead Front Sight
  Simple and fast sight alignment—ideal for wing shooting, small game, or clay targets.

• Interchangeable Choke System
  Supplied with a Modified Rem Choke, this barrel gives you the versatility to fine-tune patterns for upland, dove, rabbit, and more.

• OEM Quality Construction
  Manufactured in the USA to Remington’s original specifications for a flawless fit and lasting performance.

Product Specifications

Compatibility Notes

• Fits Remington 870 Express and Fieldmaster 12 Gauge shotguns

• Accepts 3" shells on Magnum/Super Magnum receivers

• Use 2-3/4" shells only if installed on non-Magnum receivers

• Not rifled – designed for traditional shot and field loads

Ideal For:

• Upland game and small game hunters

• Youth shooters or users seeking better handling

• Pattern tuning with Rem Chokes

• Remington 870 users upgrading or replacing a worn barrel

Why Choose This Remington Factory Barrel?

This barrel is factory-made by Remington, meaning it delivers OEM-grade reliability, safety, and performance. If you want the best possible fit for your 870 Express or Fieldmaster—and don’t want to compromise on quality—this is the barrel built for you.