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10.5-Inch A4 Upper

10.5-Inch A4 Upper .300 Blackout

BLK0366B With M-Lock Handguard

Specifications Tab 3

  • CALIBER:

    .300 AAC Blackout

  • UPPER RECEIVER:

    Forged A4

  • BARREL:

    10.5" Chrome Moly 1:9 Twist

  • MUZZLE DEVICE:

    6.8 Spc A2 Flash Hider / 5/8–24 Thread

  • GAS SYSTEM:

    Low Profile Gas Block

  • HANDGUARD:

    RRA 9.25 Inch Lightweight Free Float Rail, M-LOK® Compatible

  • INCLUDES:

    Bolt Carrier Group and Charging Handle Assembly

  • NOTE:

    For Pistol and SBR Applications Only - All NFA Rules Apply.

ROCKote Colors / Finishes

Item Number Description Select Price
BLK0366B 300BLK 10.5" Upper Half With Mid Mlock Starting at:$730.00
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