As I was putting away the Witness last night, I noticed a crack in the 10mm slide. Here are some photos.
Photo #1: From above
Photo #2: Edge-on
Photo #3: the interior crack is barely visible here, although it is quite easy to see in the metal itself. That prominent line perpendicular to the ejection port is a casting mark.
To my eye, the crack appears to go right through from the exterior of the slide to the interior. The external crack is highly visible in these photos, but the internal crack was very hard to photograph.
What say ye? I bought this gun new in April '08. It has about 500 rds of ammo thru it, mostly Double Tap. Is it still under warranty?