Ok, I just got a 1911 and am very happy with it but there is a problem.
When the slide is not fully forward, a little "control rod" I'll call it, is depressed by the slide, preventing the hammer being released by the trigger, only when the slide is forward, is the rod allowed up, allowing the trigger to be operated.
On my 1911, the slide has play when in the fully locked back position, enough so that the little rod is not fully depressed, and the hammer can be released, hitting the plastic cylinder inside!
And the hammer is in contact with it when the slide is released, scraping along it, a possible future problem.
Admittedly with not much force but there is a system in place to prevent this, but it does not work, because of this looseness.
Try it yourself with your 1911 to see if its the same, if you have one.
I could fix this by,
1: tightening the slide, How?
2: extending the little rod, How?
3: adding some material to the part that depresses the rod, again how?
The red circle is the tip of the rod.
The red is the length of slide that should depress the rod, the yellow is where it is allowed up to allow fireing.
I've also found a way to fix the problem where sometimes the slide will not lock back, I'll put that in a separate thread soon with pics if I can.