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Product Info for Mitchell Defense The DOC AR-15 5.56mm NATO 12.5in Upper Receiver
The Mitchell Defense DOC 12.5in CHF 5.56 NATO Upper Receiver in Black offers a balance between compact handling and improved velocity over shorter barrels. The 7075-T6 billet receiver features a thermal-fit barrel seat that enhances stability and accuracy. The cold hammer forged chrome-lined 12.5in barrel provides superior durability and heat resistance for sustained firing schedules. The ArmorLube Carbon Cutter BCG, built around a Carpenter 158 HP/MPI bolt, delivers smooth cycling and reduced wear. The M-LOK free-float handguard offers modular accessory mounting, while the E-Series Cerakote finish adds long-lasting protection. This upper is ideal for professional, defensive, and training applications.![]()
Specifications for Mitchell Defense The DOC AR-15 5.56mm NATO 12.5in Upper Receiver:
| Manufacturer: | Mitchell Defense |
| Caliber: | 5.56x45mm NATO |
| Overall Length: | 21 in |
| Barrel Length: | 12.5 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 12.5in Upper Receiver
- Thermal-fit billet 7075-T6 upper enhances barrel stability for tighter accuracy
- Carbon Cutter ArmorLube BCG with C158 HP/MPI bolt delivers high reliability under heavy use
- Free-float M-LOK handguard allows stable modular accessory placement
- E-Series Cerakote protects against corrosion and abrasion
- Excellent upper for users needing increased downrange energy without sacrificing mobility
Package Contents:
- Mitchell Defense The DOC AR-15 5.56mm NATO 12.5in Upper Receiver
Mitchell Defense The DOC AR-15 5.56mm NATO 12.5in Upper Receiver Orderable Models
List of Orderable Models
- Mitchell Defense DOC 12.5in 5.56 NATO Upper Receiver, Cold Hammer Forged Chrome-Lined Barrel, Black Finish, M-LOK Free-Float Handguard, 442111 , MPN: 442111 , UPC: 850073456446 , Code: 6PS-UFH-VGB21-442111
- Mitchell Defense DOC 12.5in 5.56 NATO Upper Receiver, Cold Hammer Forged Chrome-Lined Barrel, Flat Dark Earth Finish, M-LOK Free-Float Handguard, 442211 , MPN: 442211 , UPC: 850073456453 , Code: 6PS-UFH-VGB21-442211
- Mitchell Defense DOC 12.5in 5.56 NATO Upper Receiver, Cold Hammer Forged Chrome-Lined Barrel, Jungle Green Finish, M-LOK Free-Float Handguard, 442311 , MPN: 442311 , UPC: 850073456460 , Code: 6PS-UFH-VGB21-442311