I've had my Rebel Silencers SOS Hunter in 30 cal for 3 months now. Initial impressions; it is modular which is cool. The user can adjust tone and noise supression/ length rather easily (so long as you dont get it to gummed up w/carbon). It is rather solid in feel BUT it is multiple sections of threaded ALUMINUM so, understand I mean in context of aluminum it feels solid. It is not a precision can. Is it lightweight for its intended role? Yes. Is it a flexible system? Sure. It has its place in the arsenal and look foreward to further punishment. If anyone out there has questions or possible tests (that are within my abilities) send it and I will do my best to accommodate. Cheers?