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Posted: 8/29/2013 11:33:00 AM EDT
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I just got finished stoning and polishing a trigger on a Winchester model 70. It had substantial and rough creep and what I did improved it dramatically. I did not remove much material, rather just did a mirror polish so it still creeps, but so smoothly that I don't notice unless I back off the trigger before it breaks. All in all, I've tested it and am happy with it.
Now, I know the sear on the model 70 is fully heat treated and can take stoning. I also know this is not the case for the standard AR trigger. Therefore, I have no intention of touching the trigger or sear with a stone on the AR. My question is, would it be ok to do a light polish on the surface with compond and a microfiber? I have not taken a magnifying glass to the surface to see how deep the machine marks are, and if they are too deep, then I won't bother. |
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Quoted:
Oh good... It's refreshing to see that someone understands the parts and pitfalls. 
Light surface smoothing won't hurt. You're just expediting what the parts will do themselves over a few hundred rounds. Good answer. Also case hardening penetrates deeper than many people here give it credit for. I use 600 on a stone then 1000 on a stone and use metal polish on the surfaces with a dremel and buff wheel. Throw in a set of yellow JP fcg springs and you can actually turn out a pretty decent feeling trigger. |
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