Hello. I have what I believe to be an early German X5 tactical. It says p226s DE. No X5 on the slide but the box says it and the paperwork is an X5 packet with the original target. It has a bevertail with mag well flare and bottom rail with a threaded barrel that is German proofed. I got it when my Dad passed. Let me know and I can get some photos sent. Take care.