Tuning FX Impact MK2 trigger tune?

bigHUN

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Jan 16, 2020
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I saw the thread somewhere last year where the guy polished the internals but have not track it closely if any noticeable benefits? Cannot recall seeing anything about lately.

My trigger is OK, not bad but not impressive for sure. Wondering to take it apart next time rainy day if polishing could make it more crispy...
 
\ Impact progressive Sear release angle grind. [ Powder burner sear release. I don’t believe you will ever get a release as clean and crisp as a rifle/pistol. I wish FX would offer a new sear bar replacement with a 90 degree grind which I believe will give you a cleaner release.

Those that know air/fire arms better then me, speak up and correct me with the reason I’m wrong.
 
Other than getting the ball/spring contraption (second stage adjustment) adjusted to its minimum, I think about all you can do with that trigger is polish the bearing surfaces of the sear and trigger wheel. You can try adjusting out all the first stage travel, making it a single stage. This works pretty well with some of them. But, you have to be careful with it, because you are removing the safety cushion of the first stage travel, so I would consider it a bench-only adjustment. 
 
I too feel that Fx impact trigger needs to be improved. It needs to be lightened and still crisp and the first stage should continue working.

I installed the Boss match trigger in my Royale, and it's a definite improvement, but I don't know if it can be adapted to any other platform. I'm sure that FX wants the cheapest and simplest trigger that operates acceptably, and maybe they have succeeded in that. But I believe most buyers would pay more for a trigger design that uses a couple of levers and allows reasonable adjustments for weight and sear engagement. It's a proven design, the geometry works. Maybe I'm wrong.
 
Real two stage triggers have their value. For example, service rifle, where there is a required 4.5 pound minimum release weight. A well tuned two stage trigger can greatly enhance the final release to a much more manageable level, maybe a 2.5/2.0 split. I've never understood the affinity to a two stage trigger for general use. A true two stage trigger can be a much safer one, but most so called two stage triggers, are not. They are merely single stage with a certain amount of travel before reaching the sear release. A good example, the Taipan Veteran. It's a great trigger, but the sear engagement is a single stage setting, and the "first stage" travel is merely excess slop in the first and only stage.