I've read about receivers cracking, but mine has been 100%
Another complaint I hear is that they feel flimsy and if you beat someone with it, it might break.
Personally, I've never had to beat anybody with a rifle, and if it comes to that I won't care if it breaks.
If I have to go into combat, I'm betting somebody will hand me a tougher rifle.
They are a Sport Utility Fun gun, good at what they do, light weight and kinda cool.
If you are planning on using it for target practice. home defense or varmint control, they are good.