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 child the safety aspects and 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. The MOD series is meant to fit Glock 17/22 Gen4 /Gen 5 and includes two 15 round magazines, a 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. Red Dot Not Included Handgun Not Included Recommended Suppressors: Rugged Oculus and Mfg: Advantage Arms