There are 2 which are Grayguns and Armory Craft. I have several Grayguns Dual Adjustable Curved triggers and they make the SRT Kit even better.

https://grayguns.com/product/p-series-precision-adjustable-straight-trigger/?radius=100

https://www.armorycraft.com/product...t.com/product-page/copy-of-sig-p220-p226-p227-p228-p229-flat-adjustable-trigger

 

I really like the grayguns double adjustable straight and have installed several of them in my guns. I wish the armory craft ones adjusted like the grayguns. I’d like to have a skeleton trigger to match the hammer in my P229 but care for their adjustment.

 

The AC ones have two set crews now. No more filing the nub down.

 

that’s good to know. I may look into one in the future.

 

I believe GGI and AC are the only ones making dual adjustable straight triggers for the Classic P. I don't believe that there are any trigger shoes that interfere with the short reset trigger kit. They're independent in function from one another.

 

My most recent grayguns trigger install was in my P229 classic.