Product Overview
The Mossberg FLEX 500 presents a 12-gauge pump-action shotgun engineered for functional adaptability across diverse operational requirements. Chambered for 3-inch shells, this platform integrates the proprietary Mossberg FLEX system, allowing for rapid component configuration changes without specialized tools. This design choice prioritizes operational utility and user-defined optimization for tasks ranging from sporting applications to defensive roles. Its robust construction and black synthetic finish ensure consistent performance in varied environments.
Key Features
Modular FLEX System Integration
The core of the FLEX 500’s utility is its modular interface. This system facilitates tool-less exchange of critical components including the stock, forend, and recoil pad. This capability allows operators to precisely configure the firearm for specific engagements, whether for length of pull adjustment for varied body armor profiles or forend ergonomics for different shooting disciplines. The system optimizes the shotgun’s interface for immediate adaptation.
Operational Reliability
Built upon the established Mossberg 500 pump-action platform, the FLEX 500 maintains a reputation for uncompromising operational reliability. The dual action bars ensure smooth, consistent cycling under stress, mitigating potential feeding or ejection failures. A tang-mounted safety mechanism provides intuitive, ambidextrous manipulation, facilitating secure and immediate engagement or disengagement.
Configurational Versatility
Equipped with a 28-inch barrel, the FLEX 500 is specifically suited for a broad spectrum of applications. This barrel length contributes to effective shot patterns for various sporting pursuits while maintaining maneuverability. Its capability to accept 3-inch shells further extends its utility, allowing for a comprehensive selection of ammunition to match mission requirements, from game harvesting to close-quarters defensive scenarios.
Technical Specifications
- Gauge: 12 Gauge
- Chamber: 3-inch
- Barrel Length: 28 inches
- Action: Pump-Action
- Stock: Synthetic (Black), FLEX System Compatible
- Forend: Synthetic (Black), FLEX System Compatible
- Finish: Matte Black
- Safety: Tang-Mounted
- System: Mossberg FLEX Modular
- Action Bars: Dual
- SKU: RSR|MS50121









