Equipped with 5.5" bull barrel, with adjustable sights. Weight 42 oz. Note: In 1995, Ruger produced 500 22/45s with stainless steel 6.875" Government type barreled receivers for one of their distributors. They appear around 220-59xxx serial number range. In 1997, another Ruger distributor succeeded in contracting Ruger to make a similar 22/45 only in blue, with 6.875" slabside bull barrels. Approximately 1,000 were produced, with serial numbers extending to 220-87xxx serial number range.