Hello all, I am using an Aero M5 lower and upper receiver along with extended M5 pivot pin to avoid the recess. What other brands work with the M5 lower? I am a KAC diva and would like to use their LPK and any other parts I can (minus pivot pin). But don't wanna drop the coin on any KAC stuff to find it not compatible. And if KAC won't work, what are other ideas for higher end LPK's? (LMT? LWRC? Seekins?). I get people are happy with the Aero LPK, but if I can find better parts for this receiver, I would prefer to go that route.
Thanks in advance.
Thanks in advance.