The Meteoric Ore 7.5-inch .300 BLK AR-15 upper assembly is engineered for performance and reliability. Constructed with a 4150 Chrome Moly Vanadium barrel, it features a 7.5-inch length and a 1:8 twist rate, optimized for .300 Blackout ammunition. The rifle boasts a pistol gas system designed to ensure smooth operation and reliability. Its free float quad-rail handguard made from 6061-T6 aluminum allows for versatile accessory attachment, while the 7075-T6 aluminum upper receiver is anodized for durability.
The barrel is finished in phosphate for corrosion resistance, and the 5/8x24 threaded muzzle is equipped with a KAK Industry Plan B A7 Flash Hider, crafted from 17-4 stainless steel and finished in nitride. A premium low profile .750 adjustable gas block crafted from A2 tool steel ensures optimal gas regulation. This complete upper assembly also includes a mil-spec AR-15 M4 charging handle, providing a robust and lightweight solution for your pistol build.
Caliber: .300 Blackout
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Length: 7.5-inch
Barrel Twist Rate: 1:8
Barrel Finish: Phosphate
Barrel Profile: H-Bar
Barrel Thread Pitch: 5/8x24
Barrel Gas System Length: Pistol
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: Freefloat Quad-Rail
Gas Block Name: Premium Low Profile .750 Adjustable Gas Block
Gas Block Finish: Nitride
Gas Block Material: A2 Tool Steel
Muzzle Device: KAK Industry Plan B A7 Flash Hider
Muzzle Device Material: 17-4 Stainless Steel
Muzzle Device Finish: Nitride
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
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