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New! Mitchell Defense The DOC AR-15 .300 BLK 7.5in Upper Receiver 411121 Caliber: .300 AAC Blackout, Overall Length: 16.2 in, $64.50 Off w/ Free S&H
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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
- 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
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ATTENTION! We currently do not ship this product to AK, CA, HI, IL, NY, WA, P.O. Boxes, and U.S. Territories. Please see our policies for more information.
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.
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 |
| 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 |
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