No. 417M base
Fits Mossberg 500 made after 1997, 590 & 835 shotguns
Includes custom-hardened fastening screws for mounting
            Fits Mossberg 500 made after 1997, 590 & 835 shotguns
Includes custom-hardened fastening screws for mounting
Fitted it on my Mossberg
                            
                        
                            Fitted it on my Mossberg 535 waterfoul turkey combo to use a Red dot sight and it works great, easy to apply.                        
                    
                    
                    March 8, 2014
                    
                i diddnt originaly see th
                            
                        
                            i diddnt originaly see this mount i purchased a aftermaket one for the 500 series i just hope it will fit my 590. if not i will be sure to pick this one up its a reasonable price so well see.                        
                    
                    
                    January 12, 2010
                    
                I received my Weaver 417M
                            
                        
                            I received my Weaver 417M base. The base is made for a Post 1997 Mossberg Model 500, so be sure you get one. The base fit perfectly. The only thing I would suggest is getting some blue loctite for the supplied screws and adding a drop to the threading and a single drop to the bottom of the rail before mounting it. This will help the screws from backing out due to vibration from firing.                        
                    
                    
                    June 29, 2009
                    
                