If you order the conversion cylinder and gun on the same order Taylor's will fit your conversion cylinder to your gun at no charge before it ships out as a complimentary service. No frame modification is needed, although minor fitting may be required due to gun manufacturer variations. The finish option of fluting is available to have flutes cut into the body of the conversion cylinder or to have a smooth cylinder with no fluting. If shooting black powder ammunition the firings pins must be removed and cleaned to avoid corrosion. The cap is reinstalled by lining up the hole in the cap with the silver guide pin on top of the cylinder. The cylinder contains 6 firing pins retained by threaded doughnuts. Reloading/loading is done by removing the cylinder and then removing the cylinder cap from the cylinder. This stainless conversion cylinder converts stainless steel Pietta 1858 remington revolvers from.