This Aegis Lightweight 16.5-inch Mid-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Upper Build Kit from Davidson Defense is crafted for the AR-15 platform and features a 16.5-inch barrel made from 4150 Chrome Moly Vanadium steel with a Nitride finish. The medium-profile barrel is designed with a 1:7 twist rate and is equipped with a mid-length gas system, ensuring reliable cycling with a 0.75-inch gas block size. The upper receiver is constructed from durable 7075-T6 aluminum, finished with a protective anodized coating, while the lightweight 6061-T6 aluminum handguard incorporates M-Lok attachment points for customizing accessory mounting. A phosphate-finished AR-15 TPI GI Birdcage flash hider completes the kit.
Platform: AR-15
Caliber: 5.56x45mm NATO
Barrel Length: 16.5 inches
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Finish: Nitride
Barrel Profile: Medium
Barrel Twist Rate: 1:7
Barrel Thread Pitch: 1/2x28
Barrel Gas System Length: Mid-Length
Gas Block Size: 0.75 inches
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Muzzle Device: AR-15 TPI GI Birdcage Flash Hider
Muzzle Device Finish: Phosphate
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