The Aegis Lightweight 18-inch Rifle-Gas 1:7.5 6MM ARC AR-15 Freefloat M-Lok Handguard Rifle Complete Upper Build from Davidson Defense is engineered for precision and reliability. Chambered in 6mm ARC, the 18-inch barrel features a 5R rifling twist rate of 1:7.5, crafted from durable 4150 CrMoV steel and finished with a nitride treatment for enhanced performance. The upper receiver is constructed from anodized 7075-T6 aluminum, providing robust strength alongside M4 feed ramps.
Equipped with a freefloat M-Lok handguard made from 6061-T6 aluminum, this upper ensures versatile mounting options while preserving accuracy. The rifle gas system operates smoothly with a micro low-profile .750" gas block, while the included AR-15 TPI GI Birdcage flash hider effectively minimizes muzzle flash. Completing the build is a nitride-finished bolt carrier group made from 9310 alloy steel, ensuring long-lasting durability and consistent function in demanding conditions.
Caliber: 6mm ARC
Barrel Rifling: 5R Rifling
Barrel Length: 18-inch
Barrel Material: 4150 CrMoV
Barrel Thread Pitch: 5/8x24
Barrel Gas System: Rifle
Barrel Finish: Nitride
Barrel Profile: Government
Barrel Twist Rate: 1:7.5
Gas Block Size: .750"
Upper Receiver: Anodized 7075-T6 Aluminum with M4 Feed Ramps
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok, Freefloat
Muzzle Device: AR-15 TPI GI Birdcage Flash Hider
Muzzle Thread Pitch: 5/8x24
Gas Block: Micro Low-Profile .750" Gas Block
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
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