Deckard, You're confusing two products, POF-USA does not manufacture the HK rifles.
Pakistan Ordinance Factory manufactures HK rifles for the Pak army.
Patriot Ordanance Factory, POF-USA manufactures gas-pistol AR-15 type rifles in the USA, with top grade American made components. Including fluted Rock Creek 4150 1/7 and 1/8 barrels, depending on purpose, noveske brakes, etc. Some of their internals are CMT. They have nickel lined receivers. They are not in any way manufactured in Pakistan.
Pakistan Ordinance Factories, has been a Pak state enterprise, since 1951. They have been been building HK G3 and MP5s on HK tooling since the mid 90's (earlier?). If they weren't prohibs here, I'm sure they'd be selling fine.
POF-USA is the importer/distributor for Pak Ord Factory HK Rifles and Sub-guns in the USA.
POF-USA is the manufacturer of the 415/416 Upper and Rifle.
They are a privately owned US company, not a wing of the Pak state arsenal.