M4A1 weapon model (nitpick)

This is something very minor in the grand scheme of things.

I appreciate weapons changing to railed hand-guards and optic mounts when attachments are equipped; and the M4A1 adopts its RIS handguard and removes the carry handle.

But it looks like the gas block completely disappears when an optic is used? The weapon art for the game shows flip-up iron sights on the gas block but they don’t seem visible in game.

I’d honestly rather they just keep the iconic fixed front sight post for the gun instead of it looking janky without any gasblock visible.