CMMG Upper Receiver Assembly MK4/AR15 Forward Assist Tungsten
3 options
- Coyote · Tanout of stock
- Midnight · Bronzeout of stock
- Tungsten, this page
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CMMG
Overview
The CMMG Upper Receiver Assembly Mk4 is a stripped upper designed for the AR-15 platform, allowing builders to customize their firearm from the ground up. Its tungsten color provides a distinct aesthetic while maintaining compatibility with a wide range of components and accessories. This upper receiver is often used in precision or tactical builds where a unique color scheme is desired.
Specifications
CMMG Upper Receiver Assembly MK4/AR15 Forward Assist Tungsten
3 options
- Coyote · Tanout of stock
- Midnight · Bronzeout of stock
- Tungsten, this page
August 2026 on GunPartPicker
CMMG Upper Receiver Assembly MK4/AR15 Forward Assist Tungsten ranked #291 of the 690 upper receivers builders added on GunPartPicker in August 2026.
It was out of stock everywhere we track for all of August 2026, and 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 35 retailers
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