Thompson/Center Hawken, .40 cal. percussion muzzle loader.   Serial #026520.   Excellent condition.  32” Green Mountain custom octagonal barrel has excellent bore and blue.  Barrel has adjustable open sight and tang mounted Lyman receiver sight.  Case colored lock plate and hammer.  Double set triggers.  Walnut stock has excellent smooth finish with nice figure.  Brass hardware is excellent.  Lock and double set triggers work fine.  Will be a helluva shooter with these upgrades in barrel and sight! Black powder, can ship to your door.