This blued conversion cylinder converts steel frame Uberti 1st,2nd,3rd and Whitneyville Dragoon revolvers from .44 black powder to .45LC/.45Schofield smokeless ammunition. Reloading/loading is done by removing the barrel, cylinder, and then removing the cylinder cap. The cylinder contains 6 firing pins retained by threaded doughnuts. The cap is reinstalled by lining up the hole in the cap with the silver guide pin on top of the cylinder. If shooting black powder ammunition the firings pins must be removed and cleaned to avoid corrosion. No frame modification is needed, although minor fitting may be required due to gun manufacturer variations.