This trigger is not compatible with the FN Scar. The correct trigger for your Scar rifle is the Timney Triggers Scar Trigger, which can be found by using the link below:
https://www.opticsplanet.com/timney-triggers-scar-trigger.html
Yes, the Timney Triggers Daniel Horner Signature AR 2-Stage Adjustable Trigger will fit and function as intended with the Aero Precision M5.
The Sig 716i Tread is compatible with Mil-Spec AR triggers. So the Timney Triggers Daniel Horner Signature AR 2-Stage Adjustable Trigger should work fine in that rifle.
Yes, the Timney Triggers Daniel Horner Signature AR 2-Stage Adjustable Trigger will work in Mil-Spec AR15's. So it will work in an FN15 TAC3.
Yes, the Timney Triggers Daniel Horner Signature AR 2-Stage Adjustable Trigger will fit a Sig MCX Rattler.
This Timney Triggers Daniel Horner Signature AR 2-Stage Adjustable Trigger will fit Mil-Spec AR15's. So yes the Timney Triggers Daniel Horner Signature AR 2-Stage Adjustable Trigger will work in a Juggernaut AR15.
Any anti walk pin will work. You will still want to use the set screws in the trigger housing as well.
Was not provided with that information recommend reaching out to manufacturer. Phone number is 866-4TIMNEY (484-6639)
No it does not.
According to manufacturer the compatible it will work with the all military spec built AR Lowers, SIG MCX, and Sig MPX