My brand new set of Ping G425 irons don't have Arccos in the grips.
Quite interesting really, as when I ordered them (May. Got them three months later) I asked if I had to have Arccos in them as I knew I'd never use them.
I was told they all come with Arccos anyway and you can't opt out. AG bless 'em.
Apparently not so.
I ordered my irons with Jumbo grips (Orange) and when they arrived they were without Arccos.
A quick phone call and Ping confirmed they don't put them in the Jumbo grips.
Worth pointing out, as some players may want Arccos but be unaware that you don't get them with Pings Jumbo grips.