No, it's not directly compatible with the PSA JAKL 9. This is designed to fit any standard AR-15 lower receiver.
This will not work with any Geissele triggers without the G Lever.
Yes. This will work in any standard AR15 lower.
No, this FRT and FRTs in general require a milspec trigger group to work with FRTs, and do not work with drop in cassettes.
No, this model is not. You would need to buyer the Atrius G-Lever Safety in order for it to work with a Geissele trigger.
Certain platforms, such as AR9 variants, may require professional gunsmithing to ensure proper function of the selector lever. AR9's do not work on a traditional blowback system, like an AR15 or AR10, so it may require some modification.
Yes, this is compatible with the BCM PNT.
Yes, it will work with CMC.
This Forced Reset Selector will work in any standard AR-15 lower, regardless of the caliber. For lighter calibers you will need to fine tune the firearm to ensure proper function.
The G-lever is designed to work with Geiselle triggers, yes.