CMMG Upper Receiver Assembly MK4/AR15 Forward Assist Midnight Bronze
All CMMG upper receivers3 options
- Coyote · Tanout of stock
- Midnight · Bronze, this page
- Tungstenout of stock
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CMMG
Overview
The CMMG Upper Receiver Assembly Mk4 is a stripped upper receiver designed specifically for AR-15 builds, offering a solid foundation for your custom project. The midnight bronze finish adds a unique aesthetic while maintaining compatibility with standard AR-15 components. This type of upper receiver is commonly found in builds that prioritize a distinctive look without compromising on functionality.
Specifications
CMMG Upper Receiver Assembly MK4/AR15 Forward Assist Midnight Bronze
3 options
- Coyote · Tanout of stock
- Midnight · Bronze, this page
- Tungstenout of stock
Available Merchants(1)
Prices checked
Stock Alert
October 2026 on GunPartPicker
CMMG Upper Receiver Assembly MK4/AR15 Forward Assist Midnight Bronze ranked #360 of the 844 upper receivers builders added on GunPartPicker in October 2026.
Today the one retailer we track is out of stock. Listed prices start at $129.99 at Optics Planet for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Builds Featuring This Part
See all builds →Builds in the community that include the CMMG Upper Receiver Assembly Mk4/AR15 Forward Assist Midnight Bronze
| Build | Parts | Total |
|---|---|---|
 | 26 | $1690.64 |
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