Mil-Spec is just another fly-by-night upfitter hacking up F-150s to try and get a piece of the pie.
You’re paying $90,000 for what amounts to a column shift, manual HVAC, 2 mode 4WD (no 4A), key-start XLT with a bunch of meaningless “Mil-Spec” stick-on badges.
There are multiple red flags, the first being that they claim it retains Ford’s 3 year/36k bumper to bumper warranty and 5 year/60k powertrain warranty. Ford warranty covers none of the modified components, or any failures that occur as a result of the modified components. Which means you have no warranty on the suspension, wheels, tires, body panels, exterior lighting, bumpers, paint, decals, seats, steering wheel (lifted from a Raptor) or anything else they’ve molested.
The 2nd red flag is that they claim 500HP out of the 5.0 with a tune, throttle body, and cold air intake. That’s a 105HP claim over stock. Not only is that ridiculous, but that claimed power increase also affects the powertrain warranty, as any component failures attributable to the modifications are not warrantable. The fact that they’re running 37” tires on a base payload 8.8” rear axle shows they have no clue what they’re doing; it’s not engineered, it’s cobbled together.