Howdy fellow members. I was wondering if anyone has experience with a .22 Conversion Unit for AR-15? I would like any and all input, advice, warnings, personal experience or anything else you think someone in the market should know. I have been told to NOT convert my AR but to get a dedicated upper. This seems to be a very expensive option. Especially when I am seeing M&P .22s (entire rifles) in the low to mid $400's. How about a little help here folks. Thanks, b_r Wanna kill these ads? We can help!