Snider Enfield Carbine, .577 Snider cal. single shot carbine. Serial #B570, mfg. England. Good condition. 19” barrel has a very good bore with some faint pitting. Finish has turned to patina with some pitting. Stock has numerous small hits but is very solid. Somewhat ill fitted around the lock. Hammer and lock screws are held on by replacement brass nuts.  Flip up rear sight. Saddle ring on the bottom of the stock at the rear of the wrist. Action seems to work correctly. A very cool old carbine. Antique can ship to your door.