NO Why would you try to convert a 22lr to a 22lr? They are designed to fit into AR-15 not 15-22. Be Safe,
The answer is no. (I just tried in mine). The conversion mags are too deep, front to back, to fit into the 15-2 mag well. With enough time and tools, they might be made to work but with 15-22 mags readily available, why try?
The reverse will work, the 15-22 mags will work in an AR conversion with a shim to stabilize them.
Perfect answer! Thank you so much! I am getting my kid an M&P 15-22 and wanted to see if all the CMMG mags I have will work. Oh well, no big deal.
Happy New Year!
I actually went the other way. Purchased a "ready mag" and installed it in the lower of my CMMG so that I could use M&P 15-22 magazines. Holds the bolt open after the magazine is ejected and allowed me to pick up magazines locally that were on sale, and the kid and I could use the same magazines.