WTF is that ? Dildo suppressor ?

no that is how real life ak suppressors are like. 7.62 rounds are bigger than 5.56 rounds so it needs to have a bigger suppressor in order to suppress the 7.62 bullet sound
thats why the sniper suppressors are so big as well

It looks to be a Soviet PBS-1 suppressor, but it's certainly too big. The Aimpoint on that M4 looks too big too.

@maa_bunny I'm pretty sure that's the 2x red dot. The 1x aimpoint is about half that size.

@cyoce Yup, I know, I own one 😀

The Aimpoint portion of it looks too big, while the magnifier portion looks a lot closer.