I would acutally love to give you a complete review of a Jet suppressor. However, it's been over a year and no product. I can however give a review of Mike's Gun sales. I don't know how many decibles their suppressor is but I can tell you that the company's is ZERO. That's as quiet as you can get.
Up until the last month or so (gave up) I've called or e-mailed once or twice weekly for 7 months. I received one e-mail last July (2010) saying they'd get back with me soon. Debra answered the phone once in October (2010) and stated they've had some personal difficulties, apologized for the lack of communication and delay, and stated she'd get back with me soon for a refund or product update. That's it.
My advice: avoid them like the plague and spend your money elsewhere. I'd have done the same had I researched more thoroughly and read other posts on this forum about Mike's Gun Sales. I hope this report did not cross the line into abuse or slander as I've tried to just tell the truth. Thanks for reading.