I purchased a Sig p938 at the last 1500. Had FTE issues from the beginning. Read that it needs a 250-300 round break in period. Did that and still had issues. Then, people said it didn't like 115 grain ammo...fine. Picked up some 124 and 147 grain ammo. Still had problems but it did like the 147 grain best. Then I started getting random light primer strikes with 3 different kinds of ammo. Checked the firing pin and it wasn't gunked up. Called Sig and explained everything and they emailed me an express label. He said 2-3 week turn around. Hopefully they can make it right.