Was a law enforcement officer’s off responsibility gun. He purchased two guns back in 1968 (saw the receipt) I skipped out on the Colt Python but grabbed this a single. It is becoming my EDC. It‚‚s attainable another person might have a custom made barrel size for the King Cobra, https://www.primmaryarmshop.com/product-tag/colt-king-cobra/?per_page=6