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Home AR Parts Upper Receivers Complete Uppers M4E1 Threaded 10″ .300 Blackout Complete Upper Receiver w/ ATLAS S-ONE 9.2″ Handguard
Aero Precision

M4E1 Threaded 10″ .300 Blackout Complete Upper Receiver w/ ATLAS S-ONE 9.2″ Handguard

$479.99 $448.98

Available on backorder

What does 'Available on backorder' mean?For many of these items, they are simply 'special order', so we can have them in only a few days. Some products, however, carry extended lead times and may not be immediately available. If you have any questions about the lead times on a particular product, please contact us and we'll be happy to assist you.

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SKU: APAR700302M4 Categories: AR Parts, Complete Uppers, Upper Receivers
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    Description

    This complete upper includes Aero’s new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Aero’s proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

    Includes:

    • M4E1 Threaded Assembled Upper Receiver
    • ATLAS S-ONE Handguard
    • 10″ .300 Blackout CMV Barrel
    • Low Profile Gas Block and Pistol Length Gas Tube
    • Product comes assembled
    • This complete upper does not include BCG or Charging Handle.
    • The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.

    M4E1 Threaded Upper Receiver Features:

    • New enhanced forging that gives the upper receiver a “billet look”
    • New picatinny profile that blends seamlessly with Aero’s Enhanced Series Handguards
    • M4 Feedramps
    • .250 takedown pin holes
    • Laser engraved T-marks
    • Includes port door and forward assist installed

    ATLAS S-ONE Handguard Features:

    • Front and rear picatinny rail
    • Eliminated center of top rail for weight reduction
    • Indexing grooves in 12:00 position for positive grip control
    • Quick disconnect sling socket at the 3, 6 and 9 o’clock positions
    • Compatible with low profile gas blocks
    • 1.3” Inside diameter
    • 1.5” Outside diameter
    • Compatible with mil-spec AR15 upper receivers and barrels

    10″ .300 Blackout Barrel Features:

    • Length: 10″
    • Twist: 1 in 7
    • Muzzle: 5/8×24 Threaded
    • Material: 4150 Crome Moly Vanadium
    • Finish: QPQ corrosion resistant finish both inside and out
    • Gas Block: .750
    • Gas Port: .0935
    • Gas System Length: Pistol
    • Weight: 21oz
    • M4 Barrel Extension
    • HP and MPI Tested
    Additional information
    Brand

    Aero Precision

    Caliber

    .300 Blackout

    Color

    Black

    Country of Manufacture

    United States of America

    Finish

    Anodized

    Length

    9.2"

    Barrel Length

    10"

    Platform

    AR-15

    Tier

    Good

    MPN

    APAR700302M4

    UPC

    840014601745

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