The Three Hundo 16-inch AR-15 .300 BLK Rifle Full Build Kit from Davidson Defense features a 16-inch .300 Blackout barrel made from 4150 Chrome Moly Vanadium with a phosphate finish, utilizing an HBAR profile and a 1:8 twist rate. The gas system operates on a pistol-length arrangement, compatible with a 0.75 gas block size. Constructed from 7075-T6 aluminum, the upper receiver boasts an anodized finish. A 15-inch free float quad rail handguard made from aircraft-grade aluminum offers ample space for attachments. The assembly includes a GI Birdcage flash hider, an AR-15/M4 Mil-Spec charging handle, and a Gauntlet Arms Special Operations Stock made from glass-filled polymer. The stock is compatible with Mil-Spec, 6-position buffer tubes and comes with a 5.5 oz buffer weight.
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
Charging Handle: AR-15/M4, Mil-Spec
Bolt Carrier Material: 8620 Alloy Steel
Bolt Carrier Finish: Nitride
Stock Name: Gauntlet Arms Special Operations AR-15 Stock
Stock Material: Glass Filled Polymer
Stock Color: Black
Buffer Tube Compatibility: Mil-Spec, 6-Position, Carbine
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