This spring kit was super easy to install even for the novice of gun guys/girls.
I waited for some time to express my opinions on this kit.
After shooting several hundred rounds before the installation and several hundred rounds after, the trigger is day and night.
Weight reduction is perfect for self defense and competitive shooting. Not to light nor too heavy. Take up is almost non existent and breaks clean (glass like)
I was so impressed with this company's time of doing full installation videos on YouTube as well.
I just installed a spring kit in mt new CZ-P07
Which was my 2nd purchase from them. Definitely won't be my last!