CMP Service Pistol Beretta 92 Bushings

Does anyone know what type of bushings are allowed for CMP service pistol matches? I can see from old rulebooks that they used to clarify the kind that we're allowed, but no longer do in 2023. I've read that the WAL style bushings aren't allowed, but are conical ones? I'm thinking along the lines of the Allegheny Arms conical bushing.

Thanks!

I'm certainly no expert on CMP rules and I've had my run-ins with their armorers at rifle check ins, but I don't see anything that would prohibit bushings in a 92 pistol.

As long as it has all safety features in place, makes weight for trigger and overall, I don't see an issue with whatever bushing you wanted to install.