The Weaver 48455 Top Mount Base transforms your Mossberg 930 shotgun into a precision optics platform. This aluminum mounting system replaces the factory receiver with a rock-solid foundation for red dot sights, scopes, and tactical optics. Built specifically for the Mossberg 930's receiver dimensions, it maintains zero through thousands of rounds while providing multiple mounting options for various optic configurations.
What Makes This Different
Unlike generic universal mounts that require gunsmithing or compromise fit, the Weaver 48455 drops directly onto the Mossberg 930 receiver with factory-precise tolerances. The 6061-T6 aluminum construction provides 40% more rigidity than standard steel bases while weighing 2.3 ounces less. Four cross-slot mounting points offer 8 inches of rail space, accommodating everything from compact red dots to full-size rifle scopes with room for backup iron sights.
Key Features
- Direct-fit design for Mossberg 930 receivers - no gunsmithing required
- 6061-T6 aluminum construction with Type III hard anodized matte black finish
- Weaver-style cross slots spaced at standard 0.206-inch intervals
- 8-inch mounting surface accommodates multiple optic configurations
- Steel mounting screws with 25 inch-pounds torque specification
- Low-profile design maintains shotgun's handling characteristics
- Compatible with Weaver and Picatinny ring systems
Field testing demonstrates consistent zero retention through rapid-fire strings and magnum loads. The mount's rigid connection to the receiver eliminates the flex common in factory plastic components, improving accuracy with slugs and extending optic life. Law enforcement agencies report reliable performance in patrol vehicles and adverse weather conditions. The hard anodized finish resists corrosion from salt spray and cleaning solvents while maintaining its non-reflective properties.
Technical Specs
- Material: 6061-T6 aluminum alloy
- Finish: Type III hard anodized matte black
- Overall length: 8.0 inches
- Weight: 4.2 ounces
- Slot spacing: 0.206 inches (Weaver standard)
- Compatible firearms: Mossberg 930 series shotguns
- Mounting hardware: Steel screws with thread locker
- Country of origin: USA
This mount system delivers the reliability demanded by tactical professionals while offering sporting shooters the precision needed for slug accuracy. Installation takes under 15 minutes with basic tools, transforming your Mossberg 930 into a versatile optics-ready platform.