Details
The Orome 5.56 18-inch AR-15 Complete Upper Build from Davidson Defense is engineered for accuracy and reliability. Chambered in 5.56x45mm NATO, it features an 18-inch government profile barrel crafted from durable 4150 CrMoV steel with a nitride finish for corrosion resistance. The 1:7 twist rate ensures optimal bullet stabilization. The upper assembly includes a rifle-length gas system, 0.750 gas block, and a GI Birdcage flash hider. Constructed from 7075 T6 aluminum, the anodized upper receiver is lightweight yet robust. An M-Lok handguard made from 6061-T6 aluminum offers versatile accessory attachment options and a secure grip. The complete assembly comes with a Mil-Spec AR-15 M4 charging handle and a premium nitride-finished bolt carrier group made from 9310 alloy steel, ensuring reliable cycling and performance. This lightweight upper build is ideal for gunsmiths seeking precision and freedom in their firearms.
Specifications
Caliber: 5.56x45mm NATO
Barrel Material: 4150 CrMoV
Barrel Thread Pitch: 1/2×28
Color: Black
Barrel Gas System Length: Rifle
Barrel Length: 18-inch
Barrel Finish: Nitride
Barrel Profile: Government
Barrel Twist Rate: 1:7
Gas Block Size: 0.750
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Muzzle Device: AR-15 1/2×28 TPI GI Birdcage Flash Hider 5.56 .223 A2
Muzzle Thread Pitch: 1/2×28
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Bolt Carrier: Recoil Technologies Premium Complete Bolt Carrier Group
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
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