I recently sent my glock frame out to be stippled I just got it back and looks great looking for some slide serrations or a window cut if not bolth any local suggestions or any suggestions period
I sent my Glock 17 to Primary Machine and had them mill the slide for a red dot and install tall night sights that co-witness the red dot. Total job was about $300, which included cerakoting the entire slide after the milling and the night sights. It came out flawless.
I highly recommend them for their work, and their customer service.