The Davidson Defense Apiar 8.5-inch Pistol-Gas .300 BLK AR-15 Complete Upper is engineered for optimal performance in a compact configuration. Featuring an 8.5-inch heavy barrel crafted from 4150 chrome moly vanadium with a parkerized finish, this upper has a 1:9 twist rate for reliable accuracy. The pistol-length gas system improves cycling efficiency, while the 0.75-inch gas block size ensures consistent operation. The upper receiver is made from durable 7075 T6 aluminum with an anodized finish, incorporating M4 feed ramps for smooth feeding.
This build is equipped with a complete AR-15 5.56/.223/.300/.350 bolt carrier group made from 9310 alloy steel and finished with nitride for resilience. A mil-spec AR-15 M4 charging handle provides dependable handling, and the included 5/8x24 TPI GI Birdcage flash hider manages muzzle rise effectively. The freefloat M-Lok handguard allows for accessory customization without adding weight, making it ideal for any gunsmith.
Barrel: 8.5" .300 Blackout AR-15 Heavy Barrel
Caliber: .300 Blackout
Barrel Length: 8.5"
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Finish: Parkerized
Barrel Twist Rate: 1:9
Barrel Profile: Heavy
Barrel Thread Pitch: 5/8x24
Gas System Length: Pistol
Gas Block Size: 0.75
Handguard Style: Freefloat M-Lok
Upper Receiver: AR-15 Upper Receiver, M4 Feed ramps
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Bolt Carrier: AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Muzzle Device: AR-15/AR-10 .308 5/8x24 TPI GI Birdcage Flash Hider
Muzzle Thread Pitch: 5/8x24
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