I recently bought a S&W model 10-8. As far as I can tell it has a fixed barrel. I read that S&W made the earlier model 10-8 with pinned barrels then later on they started manufacturing them with fixed barrels. I'm at work right now so I'm sorry about not providing a pic. Other than some holster wear, the gun seems to be in really good shape. I guess I'm concerned about the difference in quality between the pinned barrel and unpinned barrel model 10. Is one version as good as the other when it comes to quality and durability?