I was skeptical... This. Spring. Set. Rocks!
If you want a spongy, high drag, gritty feel to your trigger go elsewhere! This spring set took about 10 minutes to install and it is amazing! The break lightened up, its crisp, consistent, and butter smooth! If you are on this website then you are looking for upgrades. This is the best $40 you can spend! I'll be buying another spring set for my backup M2.