32 1/2" bbl. the lock is marked US 1870 w/1863 Springfield Musket lock & metal is in the white, mechanically gun is good & has a fair bore. Stock is solid w/original ram rod & these were mfg. by Springfield circa 1868-1872, this is a nice example of a scarce Trapdoor model, includes bayonet & scabbard. 

Manufacturer Springfield , Model Model 1868, Caliber/Gauge 50 cal. , Class Trapdoor Rifle