It will fit a standard Aero Precision lower receiver as long as it does not have a trigger guard permanently attached on the lower.
The Daniel Defense Pistol Grip With Oversized Trigger Guard will work with Mil-Spec AR15s and will work with the Radical Firearms RPR.
All of these models of the Daniel Defense Pistol Grip With Oversized Trigger Guard come with a trigger guard. The models at the link below do not have a trigger guard but can have one attached.
https://www.opticsplanet.com/daniel-defense-overmolded-pistol-grip.html
This Daniel Defense Pistol Grip With Oversized Trigger Guard is designed to be installed replacing your existing trigger guard. If you decided to cut it off for any reason, it would still be tight as it mounts using a standard AR15 grip screw. However, Daniel Defense does make this grip without the integrated trigger guard that you can find using the following link:
https://www.opticsplanet.com/daniel-defense-overmolded-pistol-grip.html
Yes, as long as your lower receiver does not have a fixed trigger guard, it should fit.
Yes, as long as your lower receiver does not have a fixed trigger guard, it should fit.
Yes, this will fit the FX-9.
Yes, this will fit a Diamonback AR-15.
Yes, this will fit the LWRCI-DI.
Yes, the front of the trigger guard still needs to be attached by a roll pin. The back of the trigger guard does not.