HK MP5 Trigger - 9mm - 2 Stage - Complete

First thing is if you have the Century AP5 you need to get the push pin model and new replacement push pins. You cannot use the push pins from your AP5 because they are too short for this trigger group. The replacement push pins from HK Parts fit perfectly. Now this trigger can be used two ways depending on your setup. If you want to take precision shots and practice for hostage setups the first stage does this really well and you will be shocked at your grouping. The second stage takes some time to get used to. After the first break immediately go for the next shot. It took me 50 rounds of practice to understand it. Yes you can go fast with it but you need to get used to the first break. Doing burst firing becomes easier the more rounds you put through it. I cycled 200 rounds and became proficient with it The ejector is definitely improved over the stock century version because it ejects the brass consistently. The century ejector feels week at times, and having this consistency helps you go for your next shot. Overall I highly recommend getting this complete set.