I was the agent for MMD for over a decade. The MR73 is the world's most accurate revolver. Each one had to send 6 rounds inside 3/4 inch at 25 Meters. Manurhin got from Ruger the frame and action. Ruger got the police contract but could not meet the standards of the contract. Manurhin started production of the F1 which essentially was a Service 6 but with a better frame, barrel and cylinder. By unscrewing the forward screw of the side plate, one could replace the 38/357 cylinder with a 9mm cylinder that used little C springs to hold the rounds. As the MR73 hovered at over $1600 CDN, Manurhin decided to come up with a lower priced revolver. With the experience gained by manufacturing the F1 and its lower cost to manufacture, they designed the MR88 with input from North America. The trigger of a MR88 is not as smooth as the MR73 due to the orignal Ruger design. The single action trigger is very crisp. The accuracy of the MR88 is normally better than any S & W or Colt that I have had. There are only two MR88 6 inch with adjustable sights that were imported by myself. Century Arms later brought in some 4 and 3 inch with no rear sight. In the nearly 15 years that I had the line, not one revolver of any series made by Manurhin had any defect here in Canada or the US. Most of the time the requests were for new screws as people would not use the proper gunsmith screw driver.