Please forgive me for taking so long to get back to this thread, I was researching triggers.
Thanks for all the replies.
If one is to believe the marketing on the "drop-in cartridge type" trigger groups ( Wilson, ATC, Timney, et al) one of their big advantages is the ability to retain proper geometry and parts relationship even if your lower is out of spec. This would seem an important feature, at first blush, but if your trigger and hammer pin holes are far enough off to affect operation how would you ever be able to line up the pins to fit through the cartridge trigger?
How often is a quality lower out of spec? Anyone ever have this problem? Severe enough to cause malfunction or doubling?
I ask because the feedback to my original post favors the Spikes or Geiselle SSA component trigger groups, which would be susceptible to this misalignment (if it exists). No mention is made of the ATC Gold (maybe it's too new) and the Wilson and Timney are referred to as having suffered failures.
Some suggest staying with mil-spec components, but I'm dubious. I've clamped down on what seems like a hundred "krunchenticker" mil-spec atrocities and remain un-enthused over their contribution to precision rifle work. Is the Spikes' dramatically better/smoother? I realize that price and reliability are the other two legs of the equation
but what are the choices offered there.....spend $300 on a piece of fragile clockwork, or get a "reliable" trigger that feels like one of those springy things for building grip strength. Is there a smooth AR trigger out there that works like a tuned 1911 trigger? That is, consistent, with a super-short reset so, as the sights come back on target, the smallest movement throws another stone?
I'm sorry this missive has become so wordy, but I really think these manufacturers do us a disservice when they market their "greater" product to us without objectively telling us what makes it greater!
So how 'bout it, what does the Spikes do?