BCBrian-First off, if you are talking about the long-rifle version of the CZ 550, then you are not looking at a CZ 550 American. These 23.6-inch barrelled rifles do not have a humpback. If you are talking about the CZ 550 Full Stock, which is the one with the 20.5 inch barrel in the mannlicher style, then it does have a euro humpback style stock on it. McMillan does make a stock for the CZ 550 American, but not for the CZ 550 Full Stock. I do not know if the McMillan stock can be adapted to the full stock model. I am told that the McMillan stock weighs just about the same as the wood stock currently on the CZ 550 American stock, about 2.5 pounds. There is a Hunters Edge McMillan stock at 21 ounces, but it is not produced for CZ rifles. Also, the weight of the Sako Stainless synthetic is 7.75 pounds and the CZ 550 American is four ounces more, or an even eight pounds. Tom Purdom

Last edited by 7x57mm Mauser; 11/12/07.