From what I've heard, the Marstar dedicated .22LR uppers are first rate. As for TSE, can't believe you got bad service from "the boys!" I've always gotten top drawer service from TSE and would highly recommend them to any of my friends. Try PM'ing TSE JR here on CGN. JR is da' MAN! Great guy and I'm sure he can help you if they have any .22LR uppers in stock, or will put your name down for their next shipment. Bear in mind, since 9/11 it takes a lot more paperwork and a lot more BS in order to export firearms, especially military "style" rifles from the US and import them into Canada. Oftentimes there is a long waiting period in order to get State Dept. approval and the end user certificates to be issued. All that aside, you should get great customer service from TSE!