Yes, they're 6" arms. Here's a full parts list:
Emax 2306 2400kv Race Spec motors
DALRC F405 flight controller
DALRC 40A Engine ESC
Lumenier Edition Runcam Eagle 2 Pro
TBS Unify Pro V3 video transmitter
VAS Minion vtx antenna
RDQ Series 4S 100C 1300mah lipos
Genfam Flash 6X4.2 2 blade props
WhiteNoiseFPV mounting board for Unify Pro
WhiteNoiseFPV Racewire
Taurus camera protectors
So far I'm lovin' this frame, same high quality I expect from Flyno and the Aether has so many build options:
3" to 8" arms
20mm or 30.5 flight stack mounting
micro, mini or full size camera option
As you can see in the diagram, it has a 2 piece arm system sandwiched in between top and bottom plate with flight stack mounted on the top plate, giving you the ability to replace the arms by simply removing the 4 bottom screws and removing the bottom plate. Very cool.