Power armor's in build weaponry

[NagaKarat]

For an immersive play it still strike me odd when I uses certain guns and rifles in power armor, how the heck did I pull the trigger when the power armor's finger is obviously bigger than a human hand to go through the trigger guard. The only answer I can come up with is in build weaponry like gun that you can attached to your power armor arm sleeves or somewhere on the armor itself, something like Iron Patriot. I don't know how to do this myself so I am throwing such suggestion out there.