The Hair Pin Trigger Kit is designed to make any electronic, manual, or response Tippmann A5, X7, or 98 trigger faster and more sensitive than ever before. The kit comes complete with 5 different pin sizes which will allow you to fine tune your trigger and sear positions for maximum performance. Overall, the pins make any trigger shorter and easier to pull. This makes for less time between shots, shorter dwells, and longer battery life if you have an E-grip.The pins are designed to be wider than the stock pins. The Hairpin Kit's wider pins remove slop and excess travel from the stock trigger configuration and create a short and crisp trigger pull.