The FN M249S delivers military-grade firepower in a semi-automatic configuration, bringing the proven reliability of the M249 SAW to civilian shooters. This belt-fed rifle combines the robust construction of its military counterpart with semi-automatic operation for legal civilian ownership.
What Makes This Different
Unlike standard AR-15 platforms, the M249S operates from an open bolt system with a quick-change barrel design originally developed for sustained military operations. The hydraulic buffer system manages recoil more effectively than traditional gas systems, while the belt-feed mechanism eliminates magazine capacity limitations. This rifle maintains the same receiver dimensions and operating characteristics as the military M249, ensuring compatibility with existing accessories and training protocols.
Key Features
- Open bolt operation with hydraulic buffer system for consistent cycling
- Dual feed capability: 200-round belt or 30-round STANAG magazines
- 18.5-inch chrome-lined barrel with quick-change capability
- Flat Dark Earth finish with non-slip buttplate for secure shouldering
- MIL-STD-1913 Picatinny rail system for optics mounting
- Ambidextrous safety selector and charging handle operation
- Cold hammer-forged barrel rated for extended firing schedules
The M249S excels in competitive shooting environments where sustained accuracy matters, particularly in multi-gun competitions and precision rifle matches. The open bolt design prevents cook-offs during rapid fire sequences, while the hydraulic buffer maintains consistent bolt velocity across temperature extremes. Law enforcement agencies appreciate the familiar manual of arms for officers transitioning from military service.
Technical Specs
- Caliber: 5.56x45mm NATO/.223 Remington
- Barrel Length: 18.5 inches, chrome-lined
- Overall Length: 40.75 inches
- Weight: 17 pounds (unloaded)
- Feed System: Belt-fed (200 rounds) or magazine-fed (30 rounds)
- Operating System: Gas-operated, open bolt
- Trigger: Semi-automatic only
- Stock: Fixed hydraulic buffer with non-slip buttplate
- Finish: Flat Dark Earth coating
- Country of Origin: USA
The M249S represents the pinnacle of semi-automatic rifle engineering, combining military-proven reliability with civilian-legal operation. FN's commitment to manufacturing excellence ensures each rifle meets the same quality standards demanded by military contracts worldwide.