If you want a smooth and soft trigger pull on your Tippmann marker that you can adjust to your particular liking, then as always TechT is here to give you what you want. This kit has three replacement trigger return springs that allow you to customize your trigger settings easily. One spring is stiffer than the stock spring, one is about the same, and the last one is much weaker than stock. The stiffer two can also be used to replace sear springs if you so desire.