Build your ultimate big-bore AR-15 with this 18" .50 Beowulf upper assembly chambered in 12.7x42. This upper features a parkerized 416CMV barrel, 15" M-LOK handguard, and a mid-length gas system for smooth cycling and optimal performance. With its 1:20 twist rate, this upper is designed for high-powered ammunition and exceptional accuracy. Ideal for tactical, hunting, or heavy-duty use, this .50 Beowulf upper is compatible with virtually any mil-spec AR-15 lower.
Length: 18" heavy-profile barrel, offering the perfect combination of power and control.
Material: 416CMV Steel, a durable, corrosion-resistant alloy designed for high-performance.
Twist Rate: 1:20, optimized for 12.7x42 (.50 Beowulf) projectiles.
Gas System: Mid-length gas system for smooth, reliable cycling.
Gas Block Diameter: .936" to ensure proper gas flow.
Thread Pitch: 49/64x20 for compatibility with .50 Beowulf muzzle devices.
Finish: Parkerized to enhance durability and resist corrosion.
Muzzle Device: Flash hider to minimize signature and enhance stealth.
Material: 7075-T6 Aluminum Forging, providing strength and durability.
Finish: Black Hardcoat Anodized for increased resistance to wear and corrosion.
Design: A-3 Flat Top Upper Receiver with a forward assist and ejection port cover designed to accommodate big bore ammunition.
Feedramps: M4-style feedramps for reliable feeding, especially with large-caliber ammo.
Length: 15" Slim Profile M-LOK Rail for lightweight, durable accessory attachment.
Material: Aircraft-grade aluminum, black anodized for toughness and resistance.
Design: M-LOK for easy, customizable accessory mounting while minimizing weight.
This upper assembly is compatible with any mil-spec AR-15 lower receiver.
Does not include BCG or Charging Handle. These can be purchased separately.
Assembly Time: Please allow 7-10 days for assembly and shipping. Holiday and sale periods may extend lead times.
Images: Product images may vary due to stock changes, but the functionality and quality will remain the same.
Tags: ar-15, .50, beowulf, 12.7x42, 18 18", parkerized, upper, assembly, 15", mlok