The Barrett M107A1 is a .50 BMG semi-automatic rifle with a 20-inch chrome-lined fluted barrel, 10+1 capacity, 27.4 lbs weight, and 48-inch overall length. The finish is Flat Dark Earth Cerakote. It includes one magazine. 
 

Key Specifications 

• Manufacturer: Barrett 
• Model: M107A1 
• Caliber: .50 BMG 
• Action: Semi-Automatic 
• Barrel Length: 20 inches 
• Overall Length: 48 inches 
• Weight: 27.4 lbs (approximately 438.4 ounces) 
• Capacity: 10+1 (includes one magazine) 
• Finish Color: Flat Dark Earth Cerakote 
   

Detailed Features 

• Chrome-lined fluted barrel: the lining adds durability and the fluting reduces weight while maintaining rigidity and dissipating heat 
• Semi-automatic action for follow-up shots without manually cycling the bolt 
• Optic-ready rail system 
• Backup iron sights included 
• Thermal cheek guard on stock 
• Monopod rear hand module for stability at long range 
   
  The M107A1 is a direct descendant of the M107 used by U.S. military forces. The A1 designation reflects improvements including the FDE Cerakote finish, lighter overall weight compared to earlier versions, and the updated stock assembly with thermal cheek guard.

The Barrett M107A1 .50 BMG in FDE attracts strong praise from long-range precision shooters and those interested in anti-materiel applications. Accuracy at extended ranges is the most consistent talking point. Owners who shoot it at distance describe tight groups for a rifle of this caliber, and the semi-automatic action allows follow-up shots without the delay of a bolt gun.

Build quality is universally well-regarded. Barrett's reputation for military-grade construction carries into the civilian market, and most owners describe the rifle as genuinely durable under hard use.

Weight is the unavoidable trade-off. At 27.4 lbs, the M107A1 requires a vehicle or pack to get into the field, and this limits its practical use to range shooting, bench work, and static deployments. Most buyers understand this before purchasing, but it drives debate about whether the semi-auto platform is necessary for civilian use versus a more portable .50 BMG bolt gun.

Cost, both the purchase price and the ongoing expense of .50 BMG ammunition, is discussed heavily. Most owners accept these costs as inherent to the platform and caliber, but it makes the M107A1 a specialized purchase rather than an everyday shooter.

Customization discussions focus on optics, as the .50 BMG's long-range capability demands a scope that can match it. Barrett owners tend to form a close-knit online community that shares information on loads, targets, and maintenance.