SN: 81-0005861. Large-format pistol made by RPB Industries under the Cobray brand prior to 1982. 6″ barrel chambered for 9x19mm, with both ¾x10″ barrel shroud and ½x28″ muzzle device threading. Very good condition with small handling marks throughout the OD green lower receiver paint and parkerized upper receiver finish. Bore is excellent. Upper receiver has a non-reciprocating left side charging handle and an optics rail.