[quote=@Guy0fV4lor]
[@Andreyich] I dont recall the mention they [b]still[/b] have the nails either. Besides, the nails protruding from Angron's skull are no more than a iconic part of his aesthetic.  If he so chose, I imagine he'd be able to manifest without them... Y'know, being a daemon and all.

Again, the question remains-- [b]would the nails even continue to function at all[/b]? 
[/quote]

In Emperor's Gift he still had the nails. Regardless, you're doing a whole lot of speculating when really there hasn't been a single instance of mutations removing the nails.