Is there any info on a piston 6.5 Grendel out there?

[tango29]

I put together a piston setup
AA 24 in barrel
Mega Billet upper/lower
Adams Arms Rifle length piston kit
Samson Star-R hand guard
Geissele HS NM DMR trigger
PSR stock

Had problems with FTE
Filed down extractor an replaced buffer
Works like a champ.accuracy is great