I have a S&W SD9VE and used the extended slide lock lever/take down lever for a Glock 19, and it works perfectly! It's about 2 or 3 mm longer but makes a big difference; it's also chrome, making it good quality and easier to see. Check it out on Amazon: Amazon.com : RSM USA CHROME EXTENDED SLIDE LOCK LEVER FOR GLOCK MODELS 17 19 20 21 22 23 24 26 27 29 30 31 32 33 34 35 37 : Sports & Outdoors