Is this based on a real full face mask?

[Powertrip]

Saw this in Uncharted 4, they do pretty well with the guns so was curious but the closest I could find was the OTS full face mask

 

[pasley]

Not an expert, but I would vote for Hollywood magic. I note the mask in the photos shows the diver's nose and mouth. I have not yet seen an FFM that did not enclose the nose and mouth in a nose pocket. NOt saying the don't exist, but there are reasons the disign of the FMM I am familiar with. I all the FFM I have ever seen (admittedly few) Air enters the mask, then goes through a one-way valve to the cup enclosing the nose and mouth then out. So I would say this is another Hollywood invention. Like the six-shooters that fire 20 bullets before being reloaded. I could be wrong.

 

[Akimbo]

Not an expert, but I would vote for Hollywood magic.

Agreed. Kirby Morgan has made a number of FFMs for TV and movie productions. They would normally never make a demand mask or hat without an oral nasal due to CO2 buildup issues, but producers want the audience to see as much of the actor's face as possible.

 

[kelemvor]

Since it's in Uncharted, it's extremely likely to be C.G.I.. Maybe something real combined with the C.G.I..

That helmet looks suspiciously like a football (handegg for you non Americans) helmet to me.