Mjac, that is the one. I finally found the paperwork, finally. It is item #1260570, called a Tang Sight, Vernier-T/C Hawken, Renegade, PA Hunter. It also has another code, maybe this is important: D5K1N18K. Anyway, I bought it online on Sept 22, 2011 and paid $36. They are at: gunpartscorp.com. I thought it was a great deal.