I just picked up a new Desert Tan Hellcat and have about 300 rounds with no mechanical issues. But, the Trijicon sight does not glow! I will contact SA next week but they all may have problems. Very happy with the performance but disappointed if it came with a defective site. Please check before you leave the gunshop with it. This is my second gun with Trijicon and the other gun is a P365 (3 months old). Both guns are great but the Sig clearly glows! As all my other guns are factory Glocks the upgrade to night sights was part of the decision to purchase. Maybe it's an easy fix. I will report back.