“All parts seem to be in good working order and of acceptable quality with one exception. The detent spring for the rear takedown pin is too long for the M5 receiver. It's possible that the spring will work for the standard lower receiver but the M5 has a different configuration for installing the detent and spring for the takedown pin. The fix is easy, clip a few millimeters of spring off and then it will fit just fine. I get why it's the way it is but it's also strange that the kit doesn't work with their own lower receiver.”
“Keep in mind when it says ‘without fire control group’ that’s not just the hammer, trigger and associated springs, but the associated pins as well. I ordered a trigger and realized I had no pins (didn’t come with the trigger) and as I said, are not included with this LPK either. Just FYI, but I think the pins should be included, but that’s on AP, not on this vendor.”
