Things I liked: It is very accurate using open sights and better with a scope.
Things I would have changed: Bigger set screws under the front extension of the barrel. At first I had trouble with the inconsistant windage and noticed the front end kept coming loose from cocking the gun. I had to use loc tite to keep them from backing out.
What others should know: The front sight is not uniform. It looks like it was filed unevenly. This is not a problem if you use a dot scope. I am using a tru glo red or green dot scope and it works great! If you use a scope, you need to buy a weaver adapter.
Things I liked: Just about everything. This is a quality gun! It is made in a factory that produces world call firearms. It is not perfect but very accurate for a BB gun. Plus, with a machine gun you want the BB's to scatter a little bit.
Things I would have changed: Gun needs a longer rail on top.
What others should know: I used (2) weaver short weaver adapters (the same type on the pyramid air video) on top. I shoot with a red dot sight and sometimes change to a crossman laser.