Monstrum Compatible Picatinny Rail Mount Henry Big Boy Rifles Winchester SXP/Defender/1300 Model Shotguns Black. 335" OAL screws) Benelli Super Black Eagle III (.335" OAL screws) Benelli M1 Benelli M2 Benelli M3 Benelli Auto Benelli Vinci (weaver 93 model) Franchi Affinity 3 Franchi Affinity 3.5 Weaver 93 hole pattern firearms Pre-2023 Stoeger M3000 Pre-2023 Stoeger M3500 Not compatible with Post-2023 Stoeger M3000 and M3500 The Picatinny rail section installs directly to the factory mounting holes via the included set screws. Package includes both #6 standard screws and .335 OAL screws to match different receiver hole patterns. The rail sections are compatible with both Picatinny and Weaver based rings and optics. 5.7 inches or 13 rail slots in length the rail allows for flexible placement of your optic for optimum eye relief and cheek weld. Specifications for Monstrum Compatible Picatinny Rail Mount: Manufacturer: Monstrum Color: Black Features of Monstrum Compatible Picatinny Rail Mount Picatinny rail mount compatible with the following firearm platforms: Remington 7400/7600 Benelli Black Eagle I/II/M1/M2/M3 Auto/Vinci Franchi Affinity 3/3.5. Package includes both #6 standard screws and .335 OAL screws to match different receiver hole patterns. Scope mount installs directly to receiver via the factory mounting holes and included set screws with no additional hardware required. All Monstrum scope mounts and accessories come with a lifetime guarantee Dedicated optic mounting base compatible with the Winchester SXP / Defender / 1300 shotgun platforms. Compatible with drilled and tapped versions only. Please check to ensure your model has mounting holes tapped on the top of your receiver. The Picatinny rail section installs directly to the factory mounting holes via the included set screws. The rail sections are compatible with both Picatinny and Weaver based rings and optics. 5.7 inches or 13 rail slots in length the rail allows for flexible placement of your optic for optimum eye relief and cheek weld. Package Contents: Monstrum Compatible Picatinny Rail Mount Monstrum RM240: Compatible Picatinny Rail Mount Henry Big Boy Rifles Winchester SXP/Defender/1300 Model Shotguns Black