Yes, the Elftmann Tactical ELF AR-10/.308 Trigger is a single stage trigger.
The Elftmann Tactical ELF AR-10/.308 Trigger will fit and function as intended in a S&W M&P 10, as it is designed to fit any Mil-spec AR10 platform rifle in .308.
You will need a small or standard pin Elftmann Tactical ELF AR-10/.308 Trigger for the Aero Precision M5.
Yes, the Elftmann Tactical ELF AR-10/.308 Trigger will work in an Aero Precision M5 in .308. You will not need the standard trigger pin size for that rifle.
You are correct, it should fit any Milspec AR. The only issue would be if you ordered the large-pin version, which will only work with certain year Colts.
No, the different model are for trigger shape and pin size.
Yes, you would want the small pin version.
Yea it should fit with the large pin kit
No, the Ruger Precision requires a trigger unit meant specifically for the Ruger Precision.
Yes, it will and you will want one of the "Standard" Trigger Pin models.