First I've ever heard of this product. There was a movie in the 1960's starring Raquel Welch and Tony Franciosa called FATHOM that had a FIRE DRAGON as part of the plot. Anybody out there remember? If so send me a PM. Don't get off topic. The cuts in the barrel above are interesting. Wouldn't the slide also have to have ports to take advantage of the recoil reduction? Or do these serve a different purpose?