The stock Glock 17 trigger for me was too tight with too much pre and post travel. I did not like the two tiered trigger engagement in the stock model. No matter how hard I tried, invariably I would trigger slap and pull down and out. After 50 live and 500 dry fires, I called on me pals in El Cajon. This product is inexpensive and cuts the travel and poundage exactly the way I hoped it would. Consistent trigger feel, travel and consistency, and very crisp. I'm not a gun guy and this was my first attempt to break down the upper and lower, clean it and do this install. It was pretty easy to do for a novice. Plenty of you tube tutorials always helps too. I also noticed that my factory Safety Plunger was marred on one side upper edge. No reason why it should be this way given low usage. I took it to FU for insider knowledge as to why this might have happened, and will make a Warranty claim on it next, but in the meantime invested in a replacement, Relatively inexpensive as well. All in $54. Very happy. FU is and has always been a great business partner.