We have one Chiappa M4-22 upper receiver for your AR-15 chambered in 22lr. Change your gun 223 AR into a 22lr plinker in a matter of seconds with this complete upper and the two included magazines. We're selling this last upper for only $299, that's a savings of $85 off the regular price of $384. You can view the upper on our site here. Like everything else on our site this upper will ship for our flat rate of $12.95 to all Provinces. Thanks for looking!