Convert your 9mm/.40 S&W Glock down to 22LR so trips to the range dont break the bank. Or if you want to teach your kid the fun of shooting but dont want him/her to start on the 9mm, a conversion kit is a great learning / training tool for your collection. The MOD-CA series is meant to fit Glock 17/22 Gen 5 and includes two 10 round magazines, 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 just some fun at the range. Conversion Kit Only Red Dot Not Included Handgun Not Included California Legal Mfg: Advantage Arms