I own a colt saa in .45 colt. It`s # SA 47021. Makes it made in 1981? I bought it used/new in 1989. Had the solid bushing. The cylinder charge holes were bored sloppy large and fired cases were bulged and had to be hammered out. I sent it back to colt with the request for a cylinder with the removable bushing. They sent me back the gun with a new cylinder with the removable bushing numbered to the gun along with the old cylinder with the same numbers. They didn't charge me a dime and I believe the shipping was free!