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You can control "take-up" with the AC trigger. That's the main difference, as the GGI trigger has no provision to adjust take-up.

I've always understood that "RXP" indicated an "X" model that shipped with a Romeo red dot sight installed. Therefore, I would use the X-Compact sight data for iron sights.

You can buy all of the SIG P320 springs individually. Midwest Gun Works is a good source, among several others. These pistols are all individuals and can react differently with the same internals. I have a parts-built X-Five with a perfect trigger and a Legion with a not-so-perfect trigger that I'm still working on. The springs that I know of... Sear Springs OEM GGI Light GGI Intermediate Tactical Pontoon Trigger Bar Spring OEM GGI Light GGI Intermediate Galloway +10%

You should be able to exceed the "AC trigger only" break quality by manipulating spring weights in your rig.

If we are talking about Gray Guns offerings, there will be no take-up adjustment with GG equipment. I believe that Bruce Gray wants anything that GGI sells to be drop-safe. BTW, that video was unwatchable for me. Maybe it was that he had the volume all wonky ?

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Something's wrong with that answer. Two different sizes ?? Maybe the question was for two different pistol models ?

No, I've never seen them on sale. You have to Pay to Play. ETA : Why not sell your GGI trigger to defray the cost of the Keres ?

I don't think there's enough added weight to make that kind of difference. People fill weapon light shells with lead or brass. Now that's some weight.

It is, if only for the reason that you can now adjust take-up.

I have the Keres and GGI sear in an X-Five. I left the Apex over-travel bushing in place. You just turn the over-travel set screw in less. And having the bushing in place makes the over-travel pin less prone to falling out when removing/handling the FCU. _ _

I would check with : Gray Guns Armory Craft

Like ^^^

I have a Romeo1 Pro on an X-Five. Getting powder kernels and debris on the lens (no LCI). With the exaggerated, forward cantilever of the SRO, it must be worse ?

I have a Keres fully adjustable trigger working very well with an Apex bar. You can mix and match.