1911’s in general, 9mm versions specifically

[Eleven]

Literally felt like the safety was on for 2 full mags. To compare I have 2 staccato,’s sti guardian and a a Tisas full size single stack all in 9mm. The STI has the best trigger followed by the Staccato then the Tisas. The Tisas is grittier and has a heavier pull but is low enough that it is similar to my single six Ruger revolvers. This DS Tisas felt like the safety was on. My trigger scale has it at 5lbs and it feels crisp with minimal take up when empty. Loaded it is different story. You can feel a definite wall that you have to break through. The STI &Staccatos are touch it and go. Much less effort and thought with the more expensive guns.

This will be a truck gun but I would like the trigger to be “similar” to the others. I am not expecting the same level or precision. I would like to see if I can improve the TDS trigger from where it is with a lighter pull.

The fact that the trigger pull changes when it is loaded is a bit interesting. Lock the slide back on an empty weapon, look to see if the disconnector or the trigger bow are protruding into the mag channel. Also check with the slide fully forward (you’ll obviously need a light).

 

[RWT]

The fact that the trigger pull changes when it is loaded is a bit interesting. Lock the slide back on an empty weapon, look to see if the disconnector or the trigger bow are protruding into the mag channel. Also check with the slide fully forward (you’ll obviously need a light).

Verified the spring is not protruding into the mag well.
I did compare the Staccato C trigger pull (5 pulls avg 2.7 ) to the TDS pull (5 pulls avg 4.11).

 

[RockAndSage]

Verified the spring is not protruding into the mag well.
I did compare the Staccato C trigger pull (5 pulls avg 2.7 ) to the TDS pull (5 pulls avg 4.11).
View attachment 1043937

If the change occurs with mag in vs mag out, the first thing that comes to mind is that the trigger bow may be bent in a bit, riding along the mag and adding friction. A properly tuned trigger bow won't be touching the mag, and won't be putting tension against the sidewalls of the frame inside the channel it's recessed in either.

One way to test for this is to pull the mainspring housing, remove the sear spring, and then hold the gun nose-down without the mag in. Press the trigger back, and then quickly remove your finger - the trigger should slide freely back to it's full-forward position just from gravity, loose and unimpeded. Then do the same thing with the mag in.