Slingfire DX400

The Slingfire DX400 is a Nerf blaster that was released in 2001 under the Power Nerf series.

It comes packaged with four Micro Darts.

Details
The Slingfire DX400 is a cord-action blaster, fired by pulling back and releasing a string. Pulling back auto-advances a four dart turret, and releasing fires a dart. Its method of firing was very similar to that of the 1998 RipChord.

History
It could be possible that the reason why the Slingfire DX400 is so rare is that the blaster was either unreleased, or had a very minor release. This can be backed up with an older archived website from 2005 claiming that the blaster was an "unknown 2003 release", indicating the blaster did not even get a mainstream release in its intended year, 2001.

The blaster was not re-released with a 2003 re-boxing, nor was it re-released under either the N-Strike and Action Blasters lines, which many of the blasters of the same time happened to do.

A possible location of release is England, where one user in the NIC described the Slingfire DX400 having a "very limited release".

Trivia

 * Today, it is among the rarest Nerf blasters ever released and is extremely scarce. To date there are no boxed images that have surfaced on the internet.
 * It is the only other blaster to have a "DX" number code, alongside the Blast Fire DX500.
 * The Slingfire name is also used by a certain Zombie Strike series blaster.