Remington 870 Barrel Features This Remington 870 Barrel is finished in parkerized steel a durable matte coating long favored on police and duty shotguns for its resistance to rust and handling wear. Its 18 inch length keeps the gun short and quick to maneuver in tight spaces a key reason this length is standard on duty and patrol-pattern 870s. The fixed improved cylinder choke opens the shot pattern for dependable performance at the shorter ranges typical of home defense and close-range work. Because it is built to the Remington 870 pattern it fits existing 870 receivers without modification. Rifle sights included on this barrel give the shooter a fast repeatable sighting reference that is more precise than a simple bead which matters when follow-up shots need to be fast and accurate. The 3 inch chamber allows a range of 12 gauge loads to be run through the gun from standard field loads to heavier magnum defensive loads. Swapping in a dedicated 18 inch duty barrel is a straightforward way to convert a field-length 870 into a purpose-built defensive or patrol gun. This Remington 870 Barrel is available for sale at GrabAGun for 870 owners building out a dedicated home defense or duty configuration. Remington 870 Barrel Specifications Manufacturer: Remington Model: 870 Barrel Caliber: 12 GA Chamber: 3 Barrel Length: 18 Color: Parkerized Choke: Improved Cylinder Sights: Rifle Sights Available At: GrabAGun