It's the milspec that troubles me...

Milspecs come in many many variants so much so that they cover a range from normal everyday fragile kit all the way to ultra secret robust stuff.

Thing is, for most advanced militaries the rule is: "if you didn't design, build and assemble it yourself (or under your control), don't trust it".

I find it extremely unlikely any half-competent armed force would use off-the-shelf stuff for anything sensitive.