This Aegis Lightweight Complete Upper Build Kit from Davidson Defense features a 4150 Chrome Moly Vanadium barrel with a 1:8 twist rate, M4 profile, and phosphate finish, ensuring reliable performance and accuracy. The carbine-length gas system and 0.75-inch gas block shelf, combined with a 9310 alloy steel bolt carrier group (BCG) finished in nitride, provide optimal cycling and longevity. Constructed from 7075-T6 aluminum, the upper receiver features an anodized finish for added durability. Completing the assembly is a freefloat M-Lok handguard made from 6061-T6 aluminum, enabling secure accessory attachment. The kit comes equipped with a Mil-Spec charging handle and an AR-15 TPI GI Birdcage flash hider.
Platform: AR-15
Caliber: 5.56x45mm NATO
Barrel Length: 10.5-inch
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Twist Rate: 1:8
Barrel Profile: M4
Barrel Finish: Phosphate
Barrel Thread Pitch: 1/2x28
Gas System Length: Carbine
Gas Block Shelf Size: 0.75-inch
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: Freefloat, M-Lok
Muzzle Device: AR-15 TPI GI Birdcage Flash Hider A2
Muzzle Thread Pitch: 1/2x28
Muzzle Device Finish: Manganese Phosphate
Charging Handle: AR-15/M4 Charging Handle, Mil-Spec
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
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