Mainly in areas above the trigger guard around the two frame screws, and possibly on top where the rear site is. I'm interested in it and will phone them later this week when I get my licence, but I'm impatient and am curious about others opinions for now. 
http://www.gunsmithshoppe.com/listing.php?itemID=20838
http://www.gunsmithshoppe.com/listing.php?itemID=20838


















































