Model 870 Express Compact 20 Gauge 21 Inch Vent Rib Barrel Matte Black Finish 3 Inch Chamber Hardwood Stock Flat Finish 4 Round. Thirteen inch length of pull. Rem Choke vent rib barrel and comes with Modified Rem Choke tube. Non-glare matte-finished metalwork. Receiver is machined from a solid billet of steel. Rigid twin action bars for smooth chambering and ejection. Synthetic stock and forend. SuperCell recoil pad. Adjustable length of Pull Kit which includes two 1/4 inch length of pull spacers, one 1/2 inch length of pull spacer and corresponding screw lengths to accommodate three different lengths.