- Aug 27, 2015
I hear what you're saying on the milspec while I know it should work that way. My first and second Anderson lower both had a buffer retainer hole that was too far back causing the buffer to be eaten up. I'm surprised the little nipple never broke off the pin. I have a third Anderson lower but I'm afraid to use it even though it looks ok compared to the others. That's why I'm looking for a new one.My two cents.
A mil-spec lower is a mil-spec lower.... Mostly. I prefer Aero as it seems to be the right level of quality versus cost. I have Andersons, S&W and Ruger lowers as well, all of them go bang. The Ruger is super tight on the upper, but otherwise there is little difference between them.
Where I have seen some variation is in the LPK. Cheap, discounted ones just don't seem to fit the same. I've had friends who thought their lower was out of spec because a five cent detent was crappy.