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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.![]()
| 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 |
| 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 |