Carlson's Choke Tubes Remington 870 12GA Shotgun Barrel Right Hand 18 1/2in. w/Cylinder. These Shotgun Barrels from Carlson's Choke Tubes are constructed with ordinance grade 4140 steel and have chrome lined bores for smooth firing. Carlson's Remington 870 12ga Shotgun Barrel Replacements come with genuine Carlson's choke tubes already installed. Improve your accuracy with a durable Carlson's Remington 870 12ga Replacement Shotgun Barrel. For Remington 870 12 gauge RIGHT HAND ONLY DOES NOT FIT REMINGTON TACTICAL 870 Specifications for Carlson's Choke Tubes Remington 870 12GA Shotgun Barrel: Manufacturer: Carlson's Choke Tubes Gauge: 12 Gun Make: Remington Gun Model: Remington Model 870 Additional Features: Right Hand only Condition: New Features of Carlson's Remington 870 12GA Custom Shotgun Barrel: All models come with Carlson choke tubes installed. Rifled models have choke tube made from 304 high stress stainless steel. Other choke tubes made from 17-4 stainless steel. Vent rib models have a satin matte blue finish with red fluorescent front sight and brass center bead. All 18 1/2 inch barrels are non vent ribbed and have a ramped front sight with a matte finish. Threaded for the standard Rem Choke system Fits Remington 870 12 gauge only Package Contents: Carlson's Choke Tubes Remington 870 12GA Shotgun Barrel wrench What firearm models does the manufacturer say Carlson's Choke Tubes Remington 870 12GA Shotgun Barrel is compatible with? The manufacturer suggests that Carlson's Choke Tubes Remington 870 12GA Shotgun Barrel is compatible with Remington Model 870Carlson's Choke Tubes 87004: Remington 870 Barrel 18 1/2in. w/Cylinder