The Three Hundo 16-inch AR-15 .300 Blackout Rifle Upper Build Kit from Davidson Defense features a 16-inch HBAR profile barrel, made from 4150 Chrome Moly Vanadium steel, with a phosphate finish. It has a 1:8 twist rate and 5/8x24 thread pitch. The gas system is pistol length and paired with a 0.75-inch gas block. The upper receiver is constructed from 7075-T6 aluminum and anodized. The 15-inch free float quad rail handguard, crafted from aircraft-grade aluminum in black, provides ample space for attachments while maintaining a lightweight profile. The build is completed with a GI Birdcage flash hider and a muzzle thread pitch of 1/2x28.
Platform: AR-15
Caliber: .300 Blackout
Barrel Length: 16 inches
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Finish: Phosphate
Barrel Profile: HBAR
Barrel Twist Rate: 1:8T
Barrel Thread Pitch: 5/8x24
Gas System Length: Pistol
Gas Block Size: 0.75
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Length: 15 inches
Handguard Material: Aircraft-Grade Aluminum
Handguard Color: Black
Handguard Style: Free Float Quad Rail
Muzzle Thread Pitch: 1/2x28
Muzzle Device: GI Birdcage Flash Hider
To view the most up-to-date shipping times Click HERE. To view Warranty, Returns, Terms & Restrictions Click HERE.
