The Davidson Defense Fossil Maker 7.62 16-inch AR-15 7.62x39 Rifle Complete Upper Build is built for durability and reliability. Chambered in 7.62x39mm, it features a 16-inch HBar profile barrel with a 1:10 twist rate, ensuring accurate performance. The carbine-length gas system utilizes a micro low-profile gas block and provides efficient cycling. Constructed from 4150 CrMoV steel and finished in black nitride, the barrel is tough and corrosion-resistant. The upper receiver is made from anodized 7075-T6 aluminum, providing lightweight strength. It includes a mil-spec charging handle and a full assembly bolt carrier group made from 9310 alloy steel with a nitride finish for smooth operation. The minimalist aluminum handguard and 5/8x24 muzzle threading allow for customization, while the AR-15/AR-10 .308 GI birdcage flash hider provides effective muzzle control. This upper build is an essential component for gunsmiths who value performance and freedom in their firearms.
Caliber: 7.62x39mm
Barrel Length: 16 inches
Gas System: Carbine Length
Profile: HBar
Twist Rate: 1:10
Finish: Black Nitride
Muzzle Thread: 5/8x24
Material: 4150 CrMoV
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Charging Handle: Mil-Spec AR-15 M4 Charging Handle
Charging Handle Color: Black
Charging Handle Material: Aluminum
Gas Block Size: .750
Gas Block Name: Micro Low-Profile Gas Block
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Bolt Carrier Name: BCG 7.62x39 Full Assembly
Handguard Material: Aluminum
Handguard Style: Minimalist
Upper Receiver Name: Stripped Upper Receiver with M4 Feed ramps
Muzzle Device: AR-15/AR-10 .308 GI Birdcage Flash Hider
Muzzle Device Finish: Manganese Phosphate
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