George Moller, American Military Shoulder Arms, Volume III, claims that Whitney purchased surplus stocks and various parts for the Pattern 1853 Enfield “Windsor” rifle muskets at auction of the assets of Robbins & Lawrence.  The rifles produced by Whitney using these parts were only generally similar to the regulation British arms.  250 Whitney Short Enfield Rifles with saber bayonets were delivered to the State of Georgia in 1860,  140 were delivered to the State of Mississippi in 1860,  100 were delivered to South Carolina in 1861 and 496 were purchased by the US Government in 1861.  Fewer than 2,000 Whitney Short Enfield rifles were produced.  Many Whitney Short Enfield rifles accept the British Pattern 1856 iron hilted saber bayonet with a .5 to .5625 inch saber bayonet stud without key, mortised and brazed to the right side of the barrel, 4.0 to 4.0625 inches behind the muzzle.  Another variety accepts an Ames brass hilted saber bayonet with a .5 inch saber bayonet stud without key, mortised and brazed to the right side of the barrel, 3.5 to 3.625 inches behind the muzzle.

The Short Enfield Rifle barrel has a smaller outside muzzle diameter than the US Model 1841 Rifle barrels and the associated bayonets would have a muzzle ring diameter around 20.8 millimeters.