The manufacturer states that the OpticsPlanet Exclusive Timney Triggers AR-15 Competition Trigger is for Mil-Spec AR15's. To be safe I recommend using the AR10 model that you can find here:
https://www.opticsplanet.com/timney-triggers-ar-10-competition-trigger.html
Absolutely:)
Absolutely:)
Diamondback is small pin.
Del-ton is a small pin. The trigger is single stage.
It is a single stage.
Yes it should be a great fit. Please be sure to use a small pin trigger unit.
Yes, the Timney Triggers AR-15 Competition Trigger is compatible with Sig M400 series rifles.
Measure your pins with calipers. If your pins measure .154" you would need small pin and if your pins measure .169" you would need large pin.
No, you would need any of our 2 Stage triggers for the AR or an AR10 specific trigger.