m102404's advice is very good.
Particularly pay attention to that bolt release. When you take it off, immediately learn how to put it back on before doing anything else. There's a little bit of metal you can push down a little bit into the lower receiver on the other side of the bolt release button, this will help the end of the release catch onto it.
Also, be very careful with the wiring. When you slide the lower receiver out, you're going to have to have the connector come all the way to the point where it's touching the delta ring in order to get the whole thing out of the upper.
My advice is to rewire your gun for Deans anyway, so when you're doing that, just make the wiring 25% longer and this won't be as annoying. That, or put in some really nice bullet connectors.
Now you know