Ask the Community

3-inch.

Sam, this shotgun comes with a 3" Chamber. ((Complete Specifications and Features)): - Remington Model 870 81166 - Pump Action Shotgun - 20 gauge - 21" Vent Rib Barrel - 3" Chamber - 4 Rounds - Single Bead Sight - Crossbolt Safety - Synthetic Stock with Realtree Hardwoods HD Camo Finish - Matte Blued Finish - Length of Pull 13" - Drop at Comb 1.5" - Drop at Heel 2.5" - Overall length 40.5" - Weight 6 lbs. ---- Includes: - 1 RemChoke Pattern Choke Tube: Modified - Length of Pull Kit with Two 1/4" and One 1/2" LOP Spacers.

Sam - On this Remington 870 Compact, you get a 21"" vent rib barrel and 3" chamber.