Okay, as a gun nerd in the group, I have to weigh in on that. The picture of the ‘tacticool’ AK you’ve got I don’t believe would work IRL. The grenade would hit the pommel of the bayonet and either just drop flat to the ground, or go careening off somewhere you’re not aiming. I get you want every attachment on your gun, ever, and while making the bayonet attachment point ‘underbarrel’ does limit some realistic ideas (such as having a vertical foregrip and a bayonet), it generally prevents bad ideas such as the one pictured. I don’t know how feasible it is to code a bayonet attachment point which would allow some attachments (see: grips, non-weapon attachments) when used while preventing others (Masterkey, M203, etc) from being put on.
But, I mean, it’s just my opinion. I could be wrong.