Phase 5 Weapon Systems CMSA Carbine Mini Stock Assembly Black Aluminum for AR15/AR10

The Phase 5 Weapon Systems CMSA Carbine Mini Stock Assembly is a compact, lightweight stock option built for shooters who want a shorter profile and improved handling on their AR15 or AR10 platform rifle. Constructed from black aluminum, this mini stock delivers the rigidity and durability expected from Phase 5's reputation in the AR aftermarket without adding unnecessary weight. Whether you're running a short-barreled rifle (SBR), working in tight spaces, or simply prefer a more aggressive, modern ergonomic setup, the CMSA gives you a proven alternative to standard-length stocks while maintaining solid cheek weld and shooter control.

Phase 5 stocks are engineered for reliability in the field and at the range. The aluminum construction ensures this assembly will handle hard use and repeated deployment without failure, making it a smart choice for tactical shooters, hunters working in brush and timber, and anyone building a specialized AR platform for specific mission requirements. The mini profile is especially popular among precision rifle enthusiasts and those optimizing their setup for accuracy and speed in competition or field environments.

Installation is straightforward for anyone familiar with AR platforms—this is a drop-in assembly compatible with both mil-spec and commercial tubes on AR15 and AR10 builds. The compact dimensions and weight savings make the CMSA particularly appealing if you're fine-tuning balance or reducing overall length without sacrificing stability or cheek contact.

Key Features

• Compact mini profile for improved handling and reduced overall length
• Black aluminum construction for durability and lightweight performance
• Compatible with both AR15 and AR10 platforms
• Engineered for field reliability and heavy use

Specifications

Frequently Asked Questions

Will this stock work on my AR15 and AR10?

Yes, the Phase 5 CMSA is designed to be compatible with both AR15 and AR10 platform rifles.

What's the main advantage of a mini stock over a standard carbine stock?

A mini stock reduces your overall rifle length and improves handling, making it ideal for short-barreled rifles, tight-quarters shooting, or anyone who prefers a more compact profile without sacrificing cheek weld or control.

Is installation difficult?

The CMSA is a straightforward drop-in assembly suitable for anyone with basic familiarity with AR platform rifles and compatible with standard mil-spec and commercial buffer tubes.