Hi Paul, This barrel is chambered for 12 gauge, has a 3" Chamber and is 26" in length with a vent rib. It has a modified choke and will accept standard screw in Remchokes, and has a matte blued finish.

I will fit any standard (4+1) 12 ga Remington 870 but the finish will not match the wingmasters It has the Remington 870 express finish a dull black It comes with a Modified rem choke screwin choke other chokes are available Features and Specifications: Manufacturer Number: 26312 Remington 870 Express 12 Gauge 26" Vent Rib Barrel Modified Choke Black Fits 12 Gauge 870s 26" Vent Rib Barrel Modified Choke 3" Chamber Color: Black Fits: 12 Gauge Remington 870 Express

I will fit any standard (4+1) 12 ga Remington 870 but the finish will not match the wingmasters It has the Remington 870 express finish a dull black It comes with a Modified rem choke screwin choke other chokes are available
Features and Specifications:
Manufacturer Number: 26312
Remington 870 Express 12 Gauge 26" Vent Rib Barrel Modified Choke Black
Fits 12 Gauge 870s
26" Vent Rib Barrel
Modified Choke
3" Chamber
Color: Black
Fits:
12 Gauge Remington 870 Express

This barrel is chambered for 12 gauge, has a 3" Chamber and is 26" in length with a vent rib. It has a modified choke and will accept standard Remchokes, and has a matte blued finish.

Yes this barrel does take screw in chokes. It comes with a modified choke but will accept standard rem chokes. Hope this helps.