The Cirdan 16-inch AR-15 upper build kit from Davidson Defense is engineered for durability and reliability, making it an ideal choice for gunsmiths who value performance. This kit is chambered for the 5.56 NATO cartridge and features a 16-inch 4150 CrMoV barrel with a pinned front sight base, optimized for carbine-length gas systems. The barrel has a 1:7 twist rate and a 1/2x28 thread pitch for standard muzzle devices.
The stripped upper receiver is made from 7075 T6 aluminum with anodized finish and includes M4 feed ramps for reliable feeding. A quad rail handguard crafted from 6061-T6 aluminum provides versatility for mounting accessories. The kit is completed with a KAK Industry Big Hole Brake, ensuring effective muzzle control. This upper build kit offers smooth assembly and functionality for a robust AR-15 platform.
Barrel Name: 16" 5.56 CMV Barrel w/ Pinned FSB, Carbine Length
Caliber: 5.56x45mm NATO
Barrel Length: 16-inch
Barrel Material: 4150 CrMoV
Barrel Twist Rate: 1:7
Barrel Thread Pitch: 1/2x28
Color: Black
Gas System: Carbine
Gas Block Size: 0.750
Muzzle Thread Pitch: 1/2x28
Upper Receiver Name: Stripped Upper Receiver with M4 Feed ramps
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: Quad Rail Drop-In
Muzzle Device: KAK Industry Big Hole Brake
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