I'm frankly more curious right now about the 'Signade' phenomenon being described by several competition shooters on various social media. They all seem to involve shattering the grip frame at the top if the grip, and splintering of the polymer frame around the FCU. As @
HCM previously posted in the meme, this has happened with other polymer pistols as well, almost always due to an improper/double charge reloaded round. Stoeger recently posted a pic of a cracked grip frame as well. The TXG Legion frames are known and acknowledged by Sig to be more brittle than the standard frames. When we had our rep and two of the LE side VPs out to our department to discuss some things, Tom Jankowicz didn't even wanna let the rep SHOW me a 320 Legion, because he didn't want it being thought of as a duty gun. He flat out say it was not suitable for that role. And I made it clear it was just a personal request since I was interested in another competition platform.
I think its likely this 'new' phenomenon is again due to ammo, though some reports indicate factory ammo as well has been implicated. That might indicate a weakness in the grip frame design, either in materials or construction. I think the relative lack of support for the case in 320 barrels compared to other brands may contribute to this as well.