The Crashout 18-inch Rifle-Gas 5.56 NATO AR-15 Upper Build Kit from Davidson Defense is engineered for durability and reliability in various shooting scenarios. This kit features an 18-inch barrel made from 4140 gun steel, finished with a nitride treatment for enhanced longevity. Its government profile and 1:7 twist rate provide optimal performance for 5.56x45mm NATO rounds. The rifle gas system length complements the design, while the micro low-profile gas block (0.750) ensures efficient gas management.
The upper receiver is constructed from 7075-T6 aluminum, anodized for corrosion resistance, and includes M4 feed ramps. A black M-Lok handguard made from 6061-T6 aluminum provides a solid platform for accessories. The kit includes an AR-15 1/2x28 TPI GI birdcage flash hider, ensuring a complete assembly for gun enthusiasts. This upper build kit is suited for gunsmiths seeking reliable performance and customizability in a 5.56 NATO AR-15 platform.
Caliber: 5.56x45mm NATO
Barrel Length: 18-inch
Barrel Material: 4140 Gun Steel
Barrel Profile: Government
Barrel Finish: Nitride
Barrel Twist Rate: 1:7
Barrel Thread Pitch: 1/2x28
Barrel Gas System Length: Rifle
Gas Block Size: 0.750
Muzzle Device: AR-15 1/2x28 TPI GI Birdcage Flash Hider 5.56 .223 A2
Muzzle Thread Pitch: 1/2x28
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
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