The Timney Triggers AR-15 Skeletonized Trigger will work in Mil-Spec dimension AR15's. It will work in a DDM PDW and you will need a small pin model for that firearm.
The Timney Triggers AR-15 Skeletonized Trigger works in Mil-Spec lowers. According to Brownells the BRN180 Lower accepts Mil-Spec compatible AR parts. So yes the Timney Triggers AR-15 Skeletonized Trigger should fit.
The manufacturer doesn't specifically give those dimensions. Email us at techsales@opticsplanet.com or contact the manufacturer for more information.
These will be ".154 and should be compatible with Stag Arm Stag 15
Yes, this should work fine.
Yes, this will work, you will need small pin size.
Yes, the small pin models will work fine.
Timney AR-15 Triggers are designed to fit all mil-spec AR-15/ M4 platforms.
No this is not a 2 stage trigger.
Yes it will.