There is no guarantee on fitting barrels to another gun. Every set is different and it can be a little work or a lot of work. And you never know until you have them in hand and start doing the fitting work.
Barrels have to be the same frame size and also having them close in serial number helps too.
You also mention your gun is a GH. Which would imply it does not have ejectors. Unless you meant GHE. Ejector barrels can be modified to fit on an extractor gun, but it is not ideal.
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B. Dudley
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