Posted 15 October 2012 - 01:38 PM
Hi Real player! Welcome to the forums. This looks to be the only available aftermarket barrel extension fit for the KMP9. Angry Gun also has a barrel extension made specifically for the MP7, and I've heard mixed reviews from that product. They have a tightbore barrel inside the the barrel extension and fits inside the original inner barrel and touches against the hop up bucking and the bb is shot through the tighter barrel. And I've seen the performance boost, no doubt it raises the fps and gives a valuable range boost, but also increases the chance of a failure, a malfunction, a bb not fired out of the barrel... all sorts of stuff. Also, the tbb inside the barrel extension can displace the hop up bucking and cause an incorrect seal and therefore also damaging the gun... If I had an MP9, I'd buy the barrel extension, but remove the inner barrel and just run the outer "can" just for looks... it does look very sexy. Oh, and just a word of wisdom, from now on please call it barrel extension. We don't use the "s word" around here. haha Hope this answers your question!