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Caliber:
.300 AAC Blackout
Overall Length:
16.2 in
Barrel Length:
7.5 in
Barrel Profile:
Standard
Gas System Length:
Pistol Length
Barrel Twist Rate:
1-5
Firearms Threads Per Inch:
Non Threaded
Muzzle Device:
A2 Flash Hider
Finish:
Nitride
Color:
Black
Gun Model:
AR-15

Code: 6PS-UFH-VGB18-411121

MPN: 411121

UPC: 850073456248

List: $1,290.00Save $64.50
$1,225.50

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made-in-usa-flag Made in USA

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Product Info for Mitchell Defense The DOC AR-15 .300 BLK 7.5in Upper Receiver

The Mitchell Defense DOC 7.5in .300 Blackout Upper Receiver is built for compact maneuverability and reliable suppressed performance. The 7075-T6 billet upper receiver features Mitchell Defense's thermal-fit barrel seat to reinforce structural integrity and improve accuracy under rapid firing. Its 7.5in barrel is optimized for close-quarters performance, offering balanced rigidity and consistent terminal effect with subsonic and supersonic loads. An adjustable gas block comes standard, allowing precise tuning for suppressed and unsuppressed use. The ArmorLube Carbon Cutter BCG with a Carpenter 158 HP/MPI bolt ensures smooth, durable cycling with reduced carbon fouling, paired with a free-float M-LOK handguard for lightweight modularity. Finished in E-Series Cerakote, this upper is ideal for compact defensive builds and suppressed applications.image

Specifications for Mitchell Defense The DOC AR-15 .300 BLK 7.5in Upper Receiver:

Manufacturer: Mitchell Defense
Caliber: .300 AAC Blackout
Overall Length: 16.2 in
Barrel Length: 7.5 in
Barrel Profile: Standard
Gas System Length: Pistol Length
Barrel Twist Rate: 1-5
Firearms Threads Per Inch: Non Threaded
Muzzle Device: A2 Flash Hider
Finish: Nitride
Color: Black
Gun Model: AR-15
Fabric/Material: 4150 CrMoV
Gun Make: AR Platform
Bolt Carrier Group Included: MIL-SPEC
Charging Handle Included: MIL-SPEC
Country of Origin: USA

Features of Mitchell Defense The DOC AR-15 .300 BLK 7.5in Upper Receiver

  • Adjustable gas block for tuning subsonic and supersonic loads
  • 7075-T6 billet upper with thermal-fit barrel seat for improved rigidity
  • ArmorLube Carbon Cutter BCG with C158 HP/MPI bolt for maximum reliability
  • Lightweight free-float M-LOK handguard for accessory flexibility

Package Contents:

  • Mitchell Defense The DOC AR-15 .300 BLK 7.5in Upper Receiver

Mitchell Defense The DOC AR-15 .300 BLK 7.5in Upper Receiver Orderable Models

List of Orderable Models

  • Mitchell Defense The DOC AR-15 .300 BLK 7.5in Upper Receiver, Chrome-Moly Barrel, Black Finish, M-LOK Free-Float Handguard, 411121 , MPN: 411121 , UPC: 850073456248 , Code: 6PS-UFH-VGB18-411121
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