10 gauge choked full and 2-7/8″ chamber. 30″ bbl, brass bead sight,round knob pistol grip stock and steel shotgun style buttplate. Metal retains most all blue with very good markings. Wood is VG condition. Mint bore. LOP 13″, drop at comb 1-7/8″ and drop at heel 2-1/4″. This is a extremely fine Model 1901!