I bought these:
linkSame pic, price, and description, so yep, should work fine. Problem I had was the POI was lower with the trijicons. About 2" low at 15 yards on my gun. I took them off. I'm sure the guns vary a bit, and I bet HK has several sizes of front and rear sights. They probably test fire the guns from a ransom rest, and knock in the correct sights. Looking at my P7PSP, the front sight seems a bit short, so maybe my gun is on one end of the range. Your gun might be perfect. BTW, I have a perfectly good set I'm not using I could sell you.
I ordered tritium vials online (they came today actually), and I'm gonna drill out the plastic white dot inserts and insert the vials into the factory sights, and cement in place. There's a thread over at the P7 cult forums on this.