Grant, thanks a lot for posting. Does this have any noticeable effect on trigger pull weight? Or are we just smoothing everything?
When everything is done, it can remove between 2-8 ounces of pull weight I think. The reason I give such a large spread is because every gun is different. If you look at the before and after pics of the GEN 2 17 trigger bar, it is night and day! Some peoples trigger bars aren’t going to be as bad.
The big thing we are after is just to remove any grittiness (not necessarily pull weight). Typically speaking, in order to adjust pull weight, metal has to be changed or removed from something. This was not the intention of this thread.
Last, but not least, a public service announcement; whenever you add, delete or modify your trigger housing, ALWAYS test fire the gun to make sure everything is ok!
C4
Great info thanks Grant - this learning will be applied to Glocks and some others. Just ordered the stones you recommended 
Yes. A lot of this will work with any gun that has a Glock “like” trigger system. Some of them would be the Walther PPS and PPQ and I think the Ruger SR9 (though I haven’t taken one apart to know for certain).
C4
The original .25 cent Glock trigger job. 
I am familiar with the “dremel magic” polish jobs, but they fail to address the high spots of the rolled metal. So the polish job will still have the grinding feel to them until the metal is totally flat.
So consider this the $5 dollar trigger job. 
C4
Thanks for this post, I’ve got to get to work on it this weekend.
Please post some pics when you have complete the trigger bar (would like to see them). Make sure to use the MACRO setting on your camera.
C4
It looks like you’re getting ready to do Glock Surgery.
LOL, they also work well on M&P’s, 1911’s etc.
C4
Great writeup, Grant! I was taking a look at my Gen4 trigger components to see how bad they were and noticed that there are two raised portions on the cruciform that create a “channel” for the striker to ride in. Basically it’s not flat like the Gen2 trigger bar you pictured. Any advice on polishing that up? Am I right in assuming that you’d want to leave those raised areas as is and just polish the surfaces without altering the shape or was the channel a byproduct of the stamping process?
A lot of people put a GEN 3 trigger bar in their GEN 4’s to reduce pull weight.
With that said, just take some polishing compound and a felt wheel and polich it up. This area isn’t all that important to how the trigger feels.
C4
Gotcha. Thanks for the reply.
Grant,
Absoulutely outstanding writeup and great pics, too! Thanks so much for your threads!
You brought up several ways to polish metal. Do you have any ideas or techniques for polishing the smaller (firing pin/FPS) springs as well?
While I’m not sure they would make a huge difference, I’ve seen these advertised in trigger kits but can’t really think of a good way to polish them.
Thanks again!
Polishing the springs? No and I don’t think it would do anything.
C4
I ordered the 400gr and 600gr stones. I need some dremel attachments still… Looking forward to trying this out. Thanks so much for the write-up Grant; invaluable!
So I just got an email reply to this thread but don’t see it here. Is there a problem with the website or is the post removed because its bad info?