The Spartan’s Arsenal 16-inch AR-15 5.56 NATO Rifle Upper Build Kit from Davidson Defense is crafted for durability and precision. This build kit features a cold hammer forged barrel, 16 inches in length, with an M4 profile and a 1:7 twist rate. The barrel is finished with a parkerized coating for added resilience. The upper receiver is made from robust 7075 T6 aluminum with an anodized finish and includes M4 feed ramps for reliable chambering and feeding. A micro low-profile gas block (.750 O.D) supports a carbine-length gas system, ensuring dependable cycling. The 15-inch handguard, constructed from 6061-T6 aluminum and finished in black, provides ample space for mounting accessories. The kit includes an A2 birdcage flash hider with a 1/2x28 thread pitch for effective muzzle control. Tools are required for assembly, making this kit suitable for the skilled gunsmith who values freedom and performance.
Caliber: 5.56 NATO
Barrel Length: 16”
Barrel Material: Cold Hammer Forged
Barrel Finish: Parkerized
Barrel Profile: M4 Profile
Barrel Twist Rate: 1:7
Gas System: Carbine-Length
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Upper Receiver Name: Stripped Upper Receiver with M4 Feed ramps
Gas Block Name: Micro Low-Profile Gas Block
Gas Block Size: .750 O.D
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Length: 15-inch
Muzzle Device: A2 Birdcage Flash Hider
Muzzle Thread Pitch: 1/2x28
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