This is the correct answer, even *IF* they are drop safe, there's so many other valid reasons to avoid Sig like the plague in 2024. They don't even wait years to revise a product, most of their recent products got major revisions the first year or two. The MPX was on Gen 2 before the first year was up, after that Sig stopped using Gen #'s because by now they'd be on about Gen 8. So many firing pin, feed ramp, extractor/barrel nut changes it's ridiculous. Even Sig's CS can't keep track of what gen parts you need half the time
Sig seems to really struggle to figure out how to get a gun to cycle properly recoil/gas etc. wise.
$3000 MCX's with a 4 MOA standard of accuracy, that they reportedly test at 25yds and extrapolate........ridiculous.
Sig does some neat designs, but their execution is horrible, and it's not things that don't show up for thousands and thousands of rounds, it's out of the gate just oozes bad design. I will say usually their CS isn't bad, and they are pretty fast at shipping/replacing stuff, but I suspect they get a huge amount of practice
I have however ran into many times they refused to sell me parts, esp. for the MPX that I'd consider typical spare parts, ejectors, extractors etc. saying they don't sell them and if you break one you have to return the entire gun. Beyond that their parts prices are INSANE. $800 for a barrel (with a 4 MOA standard), $700 for a carrier/bolt assembly, $550 for an upper, $100 for a charging handle, $200 for a gas valve, etc.
MCX/MPX have such a fast/violent bolt speed they eat triggers like fat kids eat cake. Gieselle tried for 3 years to make an MPX trigger, they finally caved and now give you 35/45/55% stronger recoil springs to try and keep their trigger together. MCX's forward assist housing is soft plastic, I see so many posts of these cracked/stripped etc.
365 had firing pin problems and spring rate problems out of the gate
P210 US version had problems breaking guide rods.
First Gen 320 X-five's the captured guide spring setup spring rate was so wrong that it didn't have enough spring to go into battery reliably, it had such a high rising rate it wouldn't run the slide far enough to eject/strip a new round. Everyone I knew running them bought 1911 sized guide rods and ran non-captured springs, fixed the problem immediately. The front sight height was so bad on the early versions that the rear sight would fly apart because you had to adjust it past it's limit to zero the gun.
Then there's Sig's love of using proprietary optics mounts.....
It goes on and on.