P90 Airsoft Picatinny Rail

thingiverse

I purchased an Airsoft P90 produced by SoftAir/CYMA: https://www.evike.com/products/10381/ Unfortunately the red dot sight it comes with is not very good. The good news is it screws in place with 2 screws, and once removed, leaves an open area for a replacement Picatinny rail. Nain's rail almost worked, but the holes were not an exact match. Also, the deep sidewalls are not required, so I eliminated them. While I was at it, I re-modeled the Picatinny rail to the specs on Wikipedia. I also contoured the front of the piece to match the profile of the frame of the gun. So, I basically re-designed and re-modeled it. But, I got the idea from Nain. I made 3 versions of this rail. One is a rail only. The second one has an integral front sight and sight channel, as Nain's does. This lets you use it as an iron sight if you remove whatever sight you have on the rail. The third one also has an integral front sight and sight channel, but it is set up as a peep sight, so that you can use the sight even if something is attached to the rail, as you can see under it. Unfortunately there is no good way to print this without supports. I recommend printing it upside down (rail side down), with support. I also print on a raft.