Nerf Rival Mirage Rear Picatinny Mod

This is a mod for the Nerf Rival Mirage blaster to add a picatinny rail to the rear of the handguard. This makes it much easier to add either a picatinny stock or N-strike stock by using my custom pic rail to N-strike stock adapter (see my page for that model). There are two versions: 

1. Snap-Fit
   - a purely snap-fit version that clamps onto the yellow pieces at the rear of the blaster
   - easier to print
   - easier to put on and remove (no hardware)
   - slightly less stable (but good enough in my opinion)
2. Bottom Rail
   - a larger version that incorporates both the bottom rail of the blaster and the snap-fit design
   - longer, more difficult print
   - difficult to remove once installed
   - optional hardware: Two #6-32 1" button head screws with nuts
      - the fit is tight enough so that this hardware is unnecessary, but looks better with it
   - very stable
   - also adds picatinny rail to bottom of blaster (increased tactics)
   - looks better

See photos for my recommended print orientations (will need supports for both). 

The stock pictured is not my creation.