The Orome 5.56 18-inch AR-15 Upper Build Kit from Davidson Defense is engineered for precision and reliability. Chambered in 5.56x45mm NATO, this upper features an 18-inch government-profile barrel made from 4140 gun steel, boasting a 1:7 twist rate and finished in nitride to ensure durability. It has a rifle-length gas system with a 0.750 gas block and is equipped with a GI Birdcage flash hider. The stripped upper receiver, constructed from 7075-T6 aluminum and anodized for resistance, includes M4 feed ramps for optimal feeding. A 15-inch M-LOK slant-pro handguard made from 6061-T6 aluminum is included, complete with built-in QD mounts for easy attachment. This assembly provides gunsmiths with a robust foundation for their AR-15 builds while supporting the pursuit of shooting freedom.
Caliber: 5.56x45mm NATO
Barrel Length: 18-inch
Barrel Twist Rate: 1:7
Barrel Material: 4140 Gun Steel
Barrel Thread Pitch: 1/2x28
Barrel Profile: Government
Barrel Finish: Nitride
Gas System Length: Rifle
Gas Block Size: 0.750
Muzzle Device: GI Birdcage Flash Hider
Muzzle Thread Pitch: 1/2x28
Muzzle Device Finish: Manganese Phosphate
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Length: 15-inch
Handguard Color: Black
Handguard Style: M-LOK Slant-Pro with Built-In QD Mounts
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