This is an early production Barnett Cavalry Carbine.  Barnett was an English maker who had a contract with the Confederacy until sometime in late 1862.  After that point the South continued to buy some of his guns, but not under contract.  This gun has a 21 inch barrel with a three position, folding leaf rear sight, swivel rammer assembly and a carbine bar and ring.  The lock is clearly marked Barnett London in front of the hammer and Crown over Tower to the rear.  The correct London proofs are found at the left rear of the barrel.  The wood is sound with no breaks or repairs and there is no burnout behind the bolster.  The metal is smooth with no major pitting and it has nice rifling in the bore.  The swivel assembly is original but the rod itself seems to be a replacement.  There is a set of initials on the left side of the stock, behind the carbine bare.  A fairly typical Southern feature.  All in all, a very good little gun.  SOLD!!