Description
The Authentic M400 ROSE is a premium, factory-original upper receiver assembly from Sig Sauer. It features a distinct anodized Rose finish on a forged 7075-T6 aluminum receiver, providing a durable and corrosion-resistant foundation. This complete upper is designed for direct compatibility with standard AR-15/M400 lower receivers, offering a seamless upgrade path with Sig Sauer’s renowned quality and reliability built in.
Key Features
- Factory-original Sig Sauer M400 upper receiver assembly
- Striking, durable Rose anodized finish on forged aluminum
- Chambered in 5.56 NATO for reliable performance
- Includes 16-inch barrel with a 1:7 twist rate
- Features M-LOK compatible handguard for accessory mounting
Specifications
| Caliber / Type | 5.56 NATO / Complete Upper Receiver |
|---|---|
| Material | Forged 7075-T6 Aluminum |
| Finish | Anodized Rose |
| Compatibility | Standard AR-15 / M400 Lower Receivers |
| Weight | Approx. 4.2 lbs (upper assembly) |
The 5.56 NATO chambering and 1:7 twist rate barrel are engineered to stabilize a wide range of bullet weights, from lighter 55-grain to heavier 77-grain projectiles, ensuring consistent accuracy. The forged 7075-T6 aluminum construction meets military specifications (MIL-A-8625F, Type III, Class 2), providing a rigid platform that maintains zero for optics and withstands the stresses of sustained fire.
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