The DD-15A4 20-inch AR-15 Rifle Upper Build Kit from Davidson Defense is a robust and reliable choice for firearms enthusiasts. Chambered in 5.56 NATO, this kit features a 20-inch HBAR barrel with a 1:7 twist rate, crafted from 4150 CrMoV steel and finished with a durable nitride coating to ensure longevity and precision performance. The upper receiver is constructed from high-quality 7075-T6 aluminum with an anodized finish, providing a lightweight yet sturdy platform. The included drop-in quad rail handguard is also made from aluminum in a sleek black color, offering versatility for mounting accessories. The build kit includes an A2/A4 F-marked front sight base for improved aiming capabilities and a flash hider with a muzzle thread pitch of 1/2x28. This upper build kit combines durability, precision, and reliability, making it ideal for gunsmiths who prioritize performance and freedom in their build projects.
Caliber: 5.56x45mm NATO
Barrel Length: 20-inch
Barrel Profile: HBAR
Barrel Twist Rate: 1:7
Barrel Material: 4150 CrMoV
Barrel Finish: Nitride
Barrel Gas System: Rifle
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: Aluminum
Handguard Color: Black
Handguard Style: Drop-In Quad Rail
Muzzle Device: Flash Hider
Muzzle Thread Pitch: 1/2x28
Sights: A2/A4 F-Marked Front Sight Base
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