I like Walther's pistols and have been looking at the P22Q for a while. The photo on their website (below) shows what looks like three pins, one above the trigger and two in the grip. I though it was odd to leave them "in the white" vs having a black finish. But, when I looked at the pistol in a gun store a few days ago, I could see daylight through the pistol at the "pin" locations. So, why are there three holes going through the P22Q?