From this internal recruiting poster:
SR25 with what what looks like the Geissele MK6 scope mount and a Leupold MARK 6 3-18. Sight has been previously spotted in one of the PSD photos.
Handguard looks like a chopped version of the MK1.5 14.5" SR-25 Geissele handguard. Geissele had posted this promo photo in 2017 of a SR-25 with the “works” on their socials.