Mad Dog Guns a name which will go with me to the end. A great guy to work with and will bend his back backwords till it cracks to help you, I can without a doubt say that he represents a great product and has the will and knowlege to make it go. I purchased some barrels from him for the R-93 ( Octagon ) and he helped me to get what I wanted. One time I ordered engraved side plates and while putting them on I did not do it right I told him what i did and promply he sent me free two new ones worth over 150 Dollars. Then sent me hex keys with handles free of charge to open and remove the foreend. I hope there were more like him, on top of that he has a great sense of humour. God bless Him. Bob Houston, Texas.