I have a CX4 in 40, ended up doing the 'Sierra-Papa' trigger upgrade, MUCH better. The stock trigger left a lot to be desired, as mentioned, lots of plastic.
While I was at SP I also got their metal recoil spring rod.
I like it, for the price after some upgrads I think I'd reccomend an AR in 40 or 9 though. It is fun and I plan to keep it.
