I've been going through my Jerry Kuhnhausen books and related material and I've noticed there no dimensions given for the sear disconnector area.
All of the source material that I can find talks about fitting the disconnector as long as possible but no info is given for how much surface area one should try for when fitting a sear/disconnector.
I have noticed that there's a variance in sear length anything from 1.285 to 1.310
I know that a Brownells sells a tool to deepen the slides disconnector pocket.
But what I'm looking for is the area where the sears tails connect the disconnector.
Has anyone measured their gun's sear/disconnector area?
I think from observing the depth of the notch in the slide where the head of the disconnector sits would give an indication of the theoretical overlap possible.
What the minimum sear to disconector contact would be would be slightly less than that notch depth I guess. All in theory.
Measured 4 guns and found these dimensions.
(By measuring the disconector head height above the frame during both the sear contact, ready to drop the hammer state, and pushed down to be below sear contact states)
None of my disconectors contact the top of the notch in the slide as far as I know. Plus, these measurements might just be the way I set up my guns and not relate to a factory unaltered gun.
0.033
0.036
0.034
0.040
Never measured that before and there is surprisingly little variation from gun to gun really .007 max.
All of them function reliably with no slipping of the disconnector under the sears when the trigger is pulled.