I saw this link on another forum and thought I would pass it on you you fellow mates and gals. I just got off the phone with one of the gunsmiths there and he said that there striker blocks will be in next week. This guy was awesome he answered all questions and went above and beyond to explain it all to me as if I had never done any gun work or mods at all. I will be giving these guys my business soon as they have both the sear and the striker block in stock. http://apextactical.com/hp_zencart/index.php?main_page=product_info&cPath=7&products_id=21 This is a simple drop in lit for sear and striker block.