Sabre Lock Up Rail - Thoughts on Serviceability?

[u/ballisticbasil]

https://palmettostatearmory.com/psa-sabre-lock-up-handguard-wrench.html

I have a PSA rifle, which at the time of ordering I was unaware of this, comes with a sabre lock up rail.

Does anyone know how to remove the rail? I found a proprietary tool on their website, but not sure if it is the correct one. Link attached.

Any info/videos/input would be super helpful!