Starscream Barrel Roll Blaster

The Starscream Barrel Roll Blaster is a Hasbro blaster that was released in 2007 to promote the film Transformers.

It comes packaged with four Screamin' Mega Darts.

Details
The Starscream Barrel Roll Blaster has the ability to transform from jet to blaster. Much like the Cyber Stryke Gear Strongarm and the Flip & Fire Gauntlet, it is designed to be worn on the user's arm. It fires two darts at once from its dual barrels.

The blaster has the ability to store two darts on either side of the trigger guard.

Reloading and firing
To reload the Starscream Barrel Roll Blaster, simply insert one dart into either or both of the blaster's twin barrels. Make sure the blaster is in its de-transformed state before cocking the blaster. Pull back the priming mechanism handle in the center of the two barrels to cock the blaster.

Pull the trigger fully to fire both darts together. Alternately, much like the Barrel Break and Rough Cut, one may carefully pull the trigger partway to fire the first dart before the other.