I bought a bunch of barrels at an estate sale. This straight octagon used .50 barrel is 15/16” across the flats and 41 and 3/8” long. It is set up for breechplug and drum and nipple. None of those are included. No sights but underlugs are installed and dovetails are present for sights. At the breech area on top flat are 2 tapped holes for mounting a peep sight. The bore looks perfect and a patch runs smoothly. This would be a great second or replacement barrel for a DGW gun or an inexpensive build for someone. $75 plus shipping. Talk to me.