The Tacamo AK-47 Sight Cover of the M-98 features the Picatinny style mounting system preferred by mil/sim players. While it was designed for use with our AK kit, it looks great by itself, or with M-4 / M-16 accessories.
The Tacamo TACAMO AK-47 Sight Cover is older, so while it may be available used and in a few cases new, it is not commonly available anymore.
I got this sight rail for my 98 so that I could mount a sight on my marker. I really liked the look of it, but when it came time to order, I found a problem; I had to file down the back sight on my 98 for the rail to fit properly. Over time of removing and replacing the rail, it started to wear into the receivers of my marker. Overall, I would say that this product is pretty nice, but its not absolutely amazing...
Get it if you are a scenario baller, and don't mind doing some custom work on your marker.