I always tell everyone that wants a Lightning to be prepared for it to become a second hobby. To keep it running you have to know how to take it completely apart, understand how the internals work and be prepared to do a lot of repairs yourself. There are two versions of the Gold Rush. There are no parts for the first version. Parts are very slow in coming from Uberti if you need any for the second. There are only a handful of smiths that understand them. One of the few is Lassiter in Ohio. If you go to the SASS wire and do a search you can probably find his contact telephone number. (I can't find it right now.) The Gold Rush does not have a slide lock. It takes some getting use to to fully open and close the action and pull the trigger at the right time to make sure everything runs correctly and you don't jam it. (Of course, many jam right out of the box anyway. That is why Uberti came up with version two, to try and fix some issues.) I don't know your experience level but Lightnings are OAL and bullet shape sensitive. You have a .45 so it is pretty hard to load them to short. However, use only a round nose flat point bullets. The popular semi-wadcutters and truncated cones don't work well.