OPF-FN509T, RMR is a solid state (one piece), steel plate designed for the FN 509 Tactical and FN 509 MRD.
OPF-FNT09T, RMR is a one piece, billet machined plate for RMR/SRO, it is not guaranteed to work with non-Trijicon sights that have the RMR footprint. The way FN has designed the optics plate for the 509 Tactical is rather unusual to us, it consists of a MIM or cast steel plate with lugs for the RMR, and a larger plastic piece sans any lugs or means to prevent the sight from moving laterally.
Factory FN 509 Tactical sights remain compatible with OPF-FN509T, RMR and provide lower 1/3 co-witnessing.
OPF-FN509T, RMR includes the adapter plate, 2 6-40 x 1/2 T10 screws (same spec as the plates/screws packet included in the 509 Tactical, the FN supplied screws also work on OPF-509T, RMR plate), a packet of VC-3 thread locker, and a T10 key. A proper torque wrench is required to impart the correct torque value to the mounting screws.
- Torque value for the 6-40 x 1/2 T10 screws is 12 to 13 in lbs.
 - Proudly designed and made in the USA.
 
            Available options:
                    430103574
        
        Item Weight (lbs):
                            1.300
                            Make Model Fit:
                            FN.509T
                            Color:
                            Black
                            Item Height (Inches):
                            0.310
                            Compatible Optic:
                            
                            Mount Type:
                            Direct
                            Hand:
                            
                            Quantity:
                            1
                            Item Length (Inches):
                            1.980
                            Scope Tube Diameter:
                            
                            Item Width (Inches):
                            1.100
                            Sight Compatibility:
                            
                            Material:
                            Steel
                            Model Number:
                            
                            Optic Fit:
                            Trijicon RMR,Trijicon SRO
                    Prop 65 restriction:
                                WARNING: This product can expose you to chemicals including metallic nickel, chromium and lead, which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
                        
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            FN 509 Optic Mounting Plate
                        MAP:
                        76.000000000
                    
                    
                            Your Price
                        
                        
                            $2,299.99 *
                        
                    Crow # 430103574
                    MFR # OPF-FN509T, RMR
                    UPC 697566711060
                
                    
                    
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