I am new to Glocks, but want to get a Glock 30 for my CCW when I get back from this tour. I read on another forum that Glocks come with plastic sights. Is this true?? And if so is there a shop that sells metal sights that look like the stock ones? Because I really like the sight picture on the stock sights, but I'm not sure about them being plastic. Thank you in adanvce for any responses!