I have polished a couple of AR triggers with a Dremel and a cotton wheel with the red polishing compound. Works pretty well and does not actually remove any material.
On the other hand, I find the EPT trigger group from Palmetto State Armory to be pretty nice. It is basically a pre-polished mil spec trigger and they usually sell for about $30.
at that point, a JP spring set, or an aftermarket trigger, like any of the NiB triggers, Geissele, LaRue, etc will give you a trigger that is superior to a polished mil spec.
surface hardening on USGI triggers varies wildly, suggesting that people polish theirs is irresponsible, what might be ok on one trigger is too much on another.
Not me, I have selective hearing disease..
<-----Earresponsible!
Building your own firearm is irresponsible bro, yet most of the guys on here have done it, and 90% of the guys in here who have built them(myself included) plan to grab em and run n gun when the boogaloo comes, which is doubly irresponsible. A cotton wheel and jewelers rouge will do the job without causing any issue.
The fact that flamethrowers exist is proof that someone thought “I want to set those people on fire, but I’m just not close enough to get the job done”.
Theres a big difference between slapping parts together, and changing the geometry of a fire control group that was built to act a certain way.
I've built more than a few AR's, and its not some huge feat that requires you to be a master gun smith.
Funny you would say that and then take such a staunch position on slicking up a trigger group.
The fact that flamethrowers exist is proof that someone thought “I want to set those people on fire, but I’m just not close enough to get the job done”.
Sure, it's funny if you live in your own little world of bad advice.
Ar parts are plug and play, tbe hardest thing involved in assembling an ar is setting up a tourqe wrench
Trying to figure out how much material can or cant be removed while preserving the life of the component on a surface hardened part is a bit more difficult.
Please stop. Your advice isn't just bad, its dangerous.
Im not going to stop, because you are wrong. There is no way you can take off enough material with a polish to make an AR go full auto. Just the fact that you would make a statement like that is enough to infer you dont know the difference between a polish and a grind. If a polish could take off enough material to cause such a catastrophic malfunction, then there is NO FREAKING WAY it would be durable enough to function as a part of the trigger group.
The fact that flamethrowers exist is proof that someone thought “I want to set those people on fire, but I’m just not close enough to get the job done”.