Although at Power NERF series it has 6 colors, then 2003 series re-release it too. But I start to collect it from N-Strike series. It be named Secret Strike AS-1 ,total 5
Custom Nerf Secret Strike AS-1 by JohnsonArmsProps on DeviantArt
Nerf N-Strike Secret Target Strike | Rover Store, Inc.
USED* Nerf Secret Strike AS-1, Hobbies & Toys, Toys & Games on Carousell