It works, but nothing special - Iver Johnson Arms Iver Johnson Barrel 1911 .45acp Threaded No Link/pin

As others have said, get a good set of files and get ready to work. In addition to the normal filing to fit, I had a burr in between the barrel feet, where the link rotates. But after an hour or so of fine filing in all the right places, the gun cycles great. No 1911 barrel is drop in ready (unless you drop it off at your gunsmith). Its an inexpensive barrel, lacking refined machining that needs to be fitted to your 1911.