I have a build in the works using a pof np3 upper and lower, melonited krieger 24" fluted barrel, extended length gas piston system with a custom machined gas block, and op rod. The piston and gas plug are made by pof. It has a custom made rail similar to the hsr that pof makes, ut longer. It will also have a geissele dmr trigger chambered in .300 remington short action ultra mag and a prs stock. I am still waiting on the barrel
Real surprise there