Thread got me thinking and realized I did not have a "compact" .22 semi. I fixed that and just ordered a Sig 322 and Smith compact M&P.
you are gonna love the compact m&p, ours has been wonderful, we've gone 500 rounds without a hiccup before, but when it starts acting up, a quick spray clean out and its good to go again. I did just order a thread adapter for mine, the threaded ones werent out when i bought it years ago.