Model Gun House of South Korea got their guy to do a review of the Marushin COP 357 Derringer... "I reviewed and test-fired the COP 357 gas airsoft gun released by Marushin, Japan. The real gun COP 357 is a pistol developed as a backup pistol for the police. Although it is a small pistol that fits in the palm of your hand, it is powerful because it uses 357 magnum bullets.

Its unique mechanism, firing one shot from a fixed quadruple barrel, and its pretty shape make it a pistol that has also appeared in Hollywood movies like 'The Matrix Reloaded' and 'Bad Boys'.

Marushin's gas gun embodies the mechanism of a real gun as closely as possible, so it's a lot of fun to play with."