The Spectre barrel extension features no tactical rails or forms of iron sight. It is the barrel extension with least friction, due to the fact that it has more space for darts. This is due to the fact that the Spectre fires variations of the Micro Dart, rather than just Streamline Darts. It is considered the only barrel attachment that doesn't hinder darts fired through it.
The Spectre barrel extension has been released with the following color schemes:
- N-Strike (yellow, black, gray, and orange)
- N-Strike Elite (blue, white, black, gray, and orange)
- Star Wars (light blue, gray, and orange)
- It is the shortest barrel extension in both the N-Strike and N-Strike Elite lines.
- The barrel extension bears a resemblance to a silencer or suppressor. Note, however, that it does not actually quiet any Nerf blaster.