Remington Slug Barrel – 870 Express 20 Gauge 3" – 18.5" Rifled with Cantilever Mount

Built for Slug Precision. Ready for Optics. Made by Remington.

Transform your Remington 870 Express 20 Gauge into a high-performance slug gun with this factory-original 18.5” fully rifled barrel, featuring a cantilever mount for scope-ready accuracy. Whether you're gearing up for deer season or dialing in sabot slugs for tight groupings, this barrel offers the performance, fit, and finish you expect from Remington.

Designed for hunters who demand enhanced accuracy, faster sight alignment, and optic compatibility, this 3" chambered barrel is an ideal upgrade for slug-only zones and brush hunting.

Key Features

• 18.5-Inch Fully Rifled Barrel
  Rifling stabilizes sabot and rifled slugs for improved accuracy and longer effective range in the field.

• Cantilever Optic Mount
  Integrated scope rail stays attached to the barrel, ensuring that your optic holds zero even when removed from the receiver.

• Chambered for 3" Shells
  Accepts both 2-3/4" and 3" shotshells when used with Magnum or Super Magnum receivers (2-3/4" only with standard receivers).

• Genuine Remington OEM Part
  Manufactured to original factory specifications for perfect fit and reliable operation.

• Matte Blued Steel Finish
  Non-reflective, corrosion-resistant finish holds up in wet conditions and heavy use.

Product Specifications

Fitment Notes

• Will not fit 20 GA standard 870 shotguns with serial numbers ending in "X" or "N"

• Only use 2-3/4" shells when installed on non-Magnum 870 receivers

• Designed for use on Remington 870 Express 20 Gauge receivers with 3" chambers (Magnum/Super Magnum)

Who This Barrel Is For

• Whitetail hunters in slug-only zones

• Remington 870 20GA owners upgrading to optics

• Shooters needing factory-perfect replacement parts

• Hunters looking for better slug accuracy at medium range

This barrel is ready for action and ideal for deer seasons in states with slug-only firearm restrictions. With the included cantilever mount, you're set up to mount a scope or red dot for precise shots with sabot or rifled slugs.

Why Choose a Factory Remington Barrel?

As an OEM part, this barrel is made to the same exacting standards as your original firearm—ensuring perfect fit, cycling, and performance without modification or risk.