[TXplt]

+P's are no problem. Shot them in my G26 for quite some time. +P+ have no real industry standard; as such it depends on the load and the manufacturer. For the Winchester (and maybe Buffalo Bore) 9mm or similar your Glock might be OK with a limited amount to ensure reliable functioning. The gun is proofed to very high pressure and generally strong; I don't think there would be issues with blowing up your gun or anything with any commercially available +P+. But the high pressure rounds will accelerate wear.

I won't ask ? why ? but you may just consider staying with traditional +P.

I had a bad experience with MagSafe +P+ .38 special rounds in a S&W 442 revolver. It didn't cause any form of structural failure, but the rounds did embed themselves in the charge holes, with the case heads fracturing on attempted extraction after firing. Flattened primers, etc. Pounding out the cartridge sleeves was difficult and ultimately I retired the gun early out of concerns of fatigue to the cylinder.

The LEO stuff would probably be OK, but again I wouldn't feed the gun a steady diet. I'd try to get ahold of Glock with the specifics of the ammo and ask them.