The LAZR 5.56 18-inch AR-15 Complete Upper Build from Davidson Defense provides a robust and reliable platform for gunsmiths seeking precision and durability in their firearm assembly. Chambered in 5.56x45mm NATO, this upper features an 18-inch government-profile barrel crafted from 4140 gun steel, with a nitride finish for enhanced corrosion resistance. The barrel's 1:7 twist rate and 0.750 gas block size contribute to optimal accuracy and reliability. The upper receiver, made from 7075 T6 aluminum with anodized finish, includes M4 feed ramps for seamless integration. A 15-inch free float quad rail handguard constructed from 6061-T6 aluminum allows for accessory attachment and customization. Complementing the build is a GI birdcage flash hider and a mil-spec AR-15 M4 charging handle, ensuring a complete upper build that meets the needs of discerning firearms enthusiasts.
Platform: AR-15
Caliber: 5.56x45mm NATO
Barrel Length: 18-inch
Barrel Material: 4140 Gun Steel
Barrel Twist Rate: 1:7
Barrel Thread Pitch: 1/2x28
Barrel Finish: Nitride
Barrel Profile: Government
Barrel Gas System Length: Rifle
Gas Block Size: 0.750
Upper Receiver Name: Stripped Upper Receiver with M4 Feed ramps
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Name: 15" Free Float Quad Rail for AR-15
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: Quad-Rail
Muzzle Device: AR-15 1/2x28 TPI GI Birdcage Flash Hider
Muzzle Thread Pitch: 1/2x28
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
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