Units in normandy using 251/22 or 251/9

I know Das Reich used the slash-9 in Normandy but I don't believe the slash-22 came out until very late '44 or early '45...

Thank you Herr field marshal. I read Panzer Commander and was inspired to build a dio of the Recon unit in normandy preparing to charge the orne bridge, What kind of halftracks would he had used, so far ive built a Puma and sd.kfz. 222, would he had used sd.kfz. 250 or regular 251

I believe the unit involved would have been Luck's recon battalion of the 21st Panzer Division...units involved would probably have had primarily the 251; some 250's..I don't believe the 21st had Pumas or 222's, which at this stage of the war were rare, particularly in the West...

Argh thank you very much for the info, like i said i was inspired, he also had a recon unit in the east at the end of the war with the 21st correct, If my memory serves me right