This is a 18 3/4 inch 870 Wingmaster bbl. It has a Polychoke and someone Mag Na Ported? the end of the bbl.It shoots good makes a nice handy gun out of the 870. Used it on rabbits / birds and deer in tight cover. Seems like the Polychoke patterned buckshot better than cly. bored guns that I have used. $55.00 shipped in the CONUS. Email me for pics.