Other than..
...
Hopefully, a lifetime.. I think, having a Beretta Px4 40, and they come in 9mm, that their soft recoil, with the rotating barrel, and mid price of around 550 - 650, that their, any plastic framed gun, only weakness is an over pressured round, direct sunlight or heat for long periods of exposure or, the worse case scenario, dropping it on its side or bottom, hitting something hard in any weather, especially cold weather.
You can read testimony of many Glock owners of how long, and how many rounds, they have owned their guns with rounds fired, as too the durability of such plastic framed guns, over time.
OMMV,
Luck,
Ls