The Aegis Lightweight 18-inch Rifle Upper offers a robust solution for precision shooting, chambered in 5.56 NATO. This complete upper features an 18" Government Profile barrel with a 1:7 twist rate, crafted from durable 4140 gun steel and finished with nitride for longevity. The gas-operated system utilizes a rifle-length gas system paired with a micro low-profile gas block for reliable operation. The upper receiver is constructed from 7075-T6 aluminum with anodized finish and includes M4 feed ramps.
The freefloat M-Lok handguard, made of 6061-T6 aluminum, provides versatility for attachment of accessories. Completing the build is the Breek Arms Plan B Sentinel caged flash hider, designed for effective flash suppression while minimizing snagging. This upper assembly is engineered for shooters who value precision and reliability in their AR-15 platform.
Caliber: 5.56x45mm NATO
Barrel Length: 18-inch
Barrel Material: 4140 Gun Steel
Barrel Finish: Nitride
Barrel Profile: Government
Barrel Twist Rate: 1:7
Barrel Thread Pitch: 1/2x28
Barrel Gas System Length: Rifle
Gas Block: Micro Low-Profile Gas Block, .750 O.D Barrel Steel
Gas Block Size: 0.750
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Upper Receiver: AR-15 Upper Receiver, M4 Feed ramps, 7075 T6 Aluminum, Anodized
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Bolt Carrier: AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Muzzle Device: Breek Arms Plan B Sentinel Caged Flash Hider, 1/2x28
Muzzle Thread Pitch: 1/2x28
Muzzle Device Details: Closed-tine, fully shrouded (caged) for superior flash suppression and reduced snagging
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