The newest addition to my collection. A Green Mountain Barrel Co.. 1-28 twist 21 inch flintlock barrel for my Thompson Center Hawkins. I have not had a chance to shoot it yet, but I had a few PM's from people that were interested in it. I did have to trim off a little of the thimble rib to make it fit the stock. I am hoping it shoots conicals as well as my other GM barrels and this short, well balanced rifle would be an excellent tree or stalking rifle..