Modifying a single stage AR trigger

[Mr Renwick]

I had my AR apart the other day polishing the trigger group and installing lighter weight springs. I noticed that when I pulled the trigger it would cause the hammer to lower before it released. Most people say not to change the sear angle do to the case hardening on the parts being really thin. So I have been looking into case hardening and it seems to be rather easy to do with the Cherry Red kit from www.rosemill.com. So if I can re-case harden the parts do you guys see a problem with modifying the angle as long as I don't go to far with it? I also thought about taking a little material off of the hammer where the sear engages to get rid of the take up in the trigger pull. Thanks for your input.

 

[rcmodel]

What am I missing here?

The cheapest Cherry Red kit is 80 bucks!

You can buy a Rock River NM trigger for a little over a hundred that will be far better, and way safer then cobbling up a GI trigger.

http://www.brownells.com/.aspx/pid=19696/Product/AR_15_NATIONAL_MATCH_2_STAGE_TRIGGER

As for the "take-up" of the GI two-stage trigger?
It's a safety feature to prevent doubling or full-auto, and inadvertent firing..

Leave it be!

rc

 

[Mr Renwick]

I understand you could buy a new one but there is something rewarding about being able to do things yourself and if I am doing multiple ARs it would be more cost effective to do it myself. So please humor me with your thoughts on if it can be done and best ways to do it and things I should consider in doing it.

Thanks

 

[rcmodel]

Well, O.K.! Trying to be constructive then.
If you want DIY case hardening, you can buy a can of Kasenit from Brownell's for about 12 bucks.

http://www.brownells.com/.aspx/pid=7626/Product/KASENIT

There, hows that for humoring you!

rc

 

[Mr Renwick]

Thats great. LOL

 

[highorder]

DON'T MODIFY GI TRIGGER PARTS.

It's foolish, and could cost you dearly, especially if you don't have any experience doing AR trigger mods.

Have Bill Springfield do a set for you, then buy a second fire control group and use his work as a guide of you must.


EDIT: rc is polite period; he also dispenses wisdom.

 

[navyretired 1]

I think you've picked the wrong trigger to tinker with and not just because of case hardening.
Timing of hand-off, trigger reset, spring pressure, sear angle and overtravel are all connected by process and changing one often changes others.
Buy a good replacement trigger and join the other shooters and gunsmiths who know the best route to a better trigger.
Did you say single stage trigger and your trying to improve it? If so some of what I said above doesn't apply but most single stage triggers are pretty good. I'm cornfused.

 

[Mr Renwick]

Yes it is a single stage trigger and thank you for all of your input.