The Infinity Blade 20-inch AR-15 5.56 NATO rifle upper build kit from Davidson Defense is engineered for durability and precision, making it an ideal choice for gunsmiths and firearms enthusiasts. This kit features a 20-inch HBAR barrel made from 4150 CrMoV steel, finished with a parkerized coating for corrosion resistance. The barrel has a 1:7 twist rate and utilizes a rifle gas system, paired with a Recoil Technologies micro low-profile gas block (0.750 size) for efficient gas management. The upper receiver is constructed from 7075 T6 aluminum and has an anodized finish, designed with M4 feed ramps for reliable performance. Additionally, it includes an Omega Manufacturing A2 birdcage flash hider with a 1/2x28 thread pitch. The M-Lok handguard enhances accessory mounting options while maintaining a lightweight profile. This upper build kit delivers dependable performance for your AR-15 project, perfect for those who value precision in their firearms.
Caliber: 5.56x45mm NATO
Barrel Material: 4150 CrMoV
Barrel Thread Pitch: 1/2x28
Barrel Gas System: Rifle
Barrel Length: 20-inch
Barrel Finish: Parkerized
Barrel Profile: HBAR
Barrel Twist Rate: 1:7
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Gas Block Size: 0.750
Gas Block Name: Recoil Technologies Micro Low-Profile Gas Block
Muzzle Device: Omega Mfg. AR-15 1/2x28 TPI A2 Birdcage Flash Hider
Muzzle Thread Pitch: 1/2x28
Upper Receiver Name: Davidson Defense Stripped Upper Receiver with M4 Feed ramps
Handguard Style: M-Lok
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