Six, Police Service-Six and Speed-Six double-action revolvers, introduced in 1970 and produced through 1988, innovated in design and construction in such ways as to challenge that period’s status quo ...

it’s also been bestowed on a rimfire single-action (SA) revolver made by one of America’s Big Three handgun manufacturers. Say hello to the Ruger Wrangler .22 Long Rifle (.22 LR) revolver.