Ok, I called the builder, turns out they checked mag fitment using a pro mag (they called it a magpul until I made them double check) since they don't have steel HK mags apparently. I used a marker to see exactly what was rubbing and dremeled the inside of the mag well in those spots, now it works fine and you can't tell by looking at the outside. Its not Century or PTR, I don't want to put them on blast just yet. Also a little irritated I asked for a standard front sling loop and I got an ambi, asked for my demilled receiver scraps back (for a keychain) still no sign of them.
Thomas Jefferson -
"When government fears the people, there is liberty. When the people fear the government, there is tyranny."
"Those who hammer their guns into plowshares will plow for those who do not."
Last edited by Tinhatman; 08-28-2019 at 04:30 AM.
What kind of experienced HK builder would not test a factory 33/93 mag and pro mag for lock up and function... on top of that... they called it a magpul!!!! Rookie....