I have them in my AR-15's, AK's, Cetme, Ruger 10/22, PT1911, PT92's, EAA Witness 9mm (CZ75 works) and several other firearms, even modified one to fit my old Star BS (1911 style 9mm for those that don't know...). If they make one to fit something I have, I use them. I've been experimenting with making them for the PT909, PT945,24/7 and PT145 also.
http://www.buffertech.com/stores/1/index.cfm
http://www.buffertech.com/stores/1/index.cfm
