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Product Info for Mitchell Defense The DOC AR-15 5.56mm NATO 10.3in Upper Receiver

The Mitchell Defense DOC 10.3in CHF 5.56 NATO Upper Receiver is engineered for duty-grade reliability with a 7075-T6 billet upper and thermal-fit barrel seat for enhanced rigidity and accuracy. The cold hammer forged chrome-lined barrel withstands high firing schedules with exceptional heat tolerance and bore longevity. The ArmorLube Carbon Cutter BCG, built around a Carpenter 158 HP/MPI bolt, provides smooth cycling and high resistance to wear. A lightweight M-LOK free-float handguard offers stability and accessory adaptability, while the E-Series Cerakote finish protects against harsh environmental conditions. This upper is designed for users needing a robust, compact 5.56 platform optimized for professional use.image

Specifications for Mitchell Defense The DOC AR-15 5.56mm NATO 10.3in Upper Receiver:

Manufacturer: Mitchell Defense
Caliber: 5.56x45mm NATO
Overall Length: 19 in
Barrel Length: 10.3 in
Barrel Profile: Standard
Gas System Length: Carbine Length
Barrel Twist Rate: 1-7
Firearms Threads Per Inch: Non Threaded
Muzzle Device: A2 Flash Hider
Finish: Nitride
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 5.56mm NATO 10.3in Upper Receiver

  • Thermal-fit billet upper receiver enhances accuracy and structural strength
  • ArmorLube Carbon Cutter BCG with C158 HP/MPI bolt improves cycling reliability
  • Lightweight M-LOK handguard for rigid accessory mounting
  • Ideal compact 5.56 platform for duty, training, or defensive roles
  • E-Series Cerakote for long-term environmental protection

Package Contents:

  • Mitchell Defense The DOC AR-15 5.56mm NATO 10.3in Upper Receiver

Mitchell Defense The DOC AR-15 5.56mm NATO 10.3in Upper Receiver Orderable Models

List of Orderable Models

  • Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver, Cold Hammer Forged Chrome-Lined Barrel, Flat Dark Earth Finish, M-LOK Free-Float Handguard, 422211 , MPN: 422211 , UPC: 850073456286 , Code: 6PS-UFH-VGB19-422211
  • Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver, Cold Hammer Forged Chrome-Lined Barrel, Jungle Green Finish, Quad Rail Handguard, 422312 , MPN: 422312 , UPC: 850073456316 , Code: 6PS-UFH-VGB19-422312
  • Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver, Cold Hammer Forged Chrome-Lined Barrel, Flat Dark Earth Finish, Quad Rail Handguard, 422212 , MPN: 422212 , UPC: 850073456293 , Code: 6PS-UFH-VGB19-422212
  • Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver, Cold Hammer Forged Chrome-Lined Barrel, Black Finish, M-LOK Free-Float Handguard, 422111 , MPN: 422111 , UPC: 850073456262 , Code: 6PS-UFH-VGB19-422111
  • Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver, Cold Hammer Forged Chrome-Lined Barrel, Jungle Green Finish, M-LOK Free-Float Handguard, 422311 , MPN: 422311 , UPC: 850073456309 , Code: 6PS-UFH-VGB19-422311
  • Mitchell Defense DOC 10.3in 5.56 NATO Upper Receiver, Cold Hammer Forged Chrome-Lined Barrel, Black Finish, Quad Rail Handguard, 422112 , MPN: 422112 , UPC: 850073456279 , Code: 6PS-UFH-VGB19-422112
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