Drf: When I turned 21 (nearly 2 years ago) I special ordered a Stainless H&K USP Compact in variant 3. Variant 3 has a de-cocker only, with no funky manual safety position. It took about 2 months for it to arrive. Also, you should go into the store where you purchased it, or call them up to ask how the order is coming along. One day I did just that and there it was. I don’t know how long they had it there, or why they didn’t call me up?
Keep in mind the safety position when ordering holsters. Most hard molded holsters will be made for a gun with it’s safety in the on position.
Good Luck, Dan