Remington Rolling Block, 7mm cal. single shot military rifle.  NSN.  Fair condition.  30” barrel has rough bore.  Barrel and receiver have poor original finish with extensive surface corrosion.  Stock and forearm have little finish with lots of hits and dings.  Good original hardware.  Rolling block action is tight and functions well.  Beloved by numerous South American armies!  Good candidate for restoration or re-barreling.  Nice display piece too! Antique, can ship to your door.