The Italian version is all stainless, both sights, mag release, safety, mag, base plate, etc. You can just fill the holes in with white sight paint on top of the red...then if you want to remove it, just twist a drill bit in the holes with your fingers to cut it out. The white should be easier to see if you have a black rear sight...not so much if the rear sight is stainless...there's no contrast for the brain to process. With stainless sights, you're better off sooting them with a lighter and shooting off the silhouette of the sight posts.