ScottinTexas
UZI Talk Life Member

My PTR91 is completely interchangeable with my G3. Why pay more for a Pakistani copy than a US made one?
I know nothing about the PTR line. But if they make a 9mm US-made version of the MP5 on HK tooling for a price close to that of the POF version, then I for one would probably buy a PTR over the POF version.
But all I've seen are rifle caliber versions by PTR. If that is accurate, then POF wins if you are looking for a 9mm clone. And probably the same degree of POF-HK parts interchangeability exists if both PTR and POF are using HK tooling.