ADVANTAGE ARMS CONVERSION KIT FOR GLOCK 19X/45A(R) Convert your 9mm/.40 S&W Glock down to 22lr so trips to the range don't break the bank. Or if you want to teach your kid the fun of shooting but don't want him/her to start on the 9mm, a conversion kit is a great learning / training tool for your collection. Advantage Arms MOD series is meant to fit Glock 19X- G45 and includes two 15 round magazines, a 4.5" threaded barrel, a range bag, and a recessed cut for a variety of red dot* options. It's the perfect tool to work on your muscle memory or to have some fun with your 22lr can. NOTES Aftermarket sights may requir Mfg: Advantage Arms