Airsoft MP5 Top Rail Mount

Made a top rail mount for a airsoft MP5. The first file doesn't need supports and is already oriented upside down but has had issues with breaking easily. The second file needs supports enabled and is oriented on it's end, I've had better luck with the second file since it won't break easily. I tested it on a airsoft MP5 that is probably a CYMA or JG version since it doesn't have any trade marks on it.