Andy they do not come with a rail . The rear sight screws are sweated on in the inside of the power plant. You have to remove the piston and spring, drill the old screws out , install the RWS rail, sweet the new screws back on , and reassemble the pistol. Or pay Umarex about $75 to do it. Then the rail does not have a stop pin hole so I had to very carefully drill one after it was installed . So if you are going to do it drill the hole before you install the rail .I can tell you by experience the scope will back up if a stop screw is not installed. If you look real close at the rear scope mount you can see the screw I had to install . Marvin