MAC 5 Folding Stock

Polymer Folding Stock for MAC 5 & HK Roller-Delayed Platforms

Upgrade your MP5-pattern firearm with a rugged, mission-ready folding stock designed for durability, comfort, and rock-solid lockup. Constructed from high-strength glass-filled nylon, this stock delivers the strength needed for hard use while keeping weight to a minimum. The robust push-button latch system locks securely in the deployed position, providing a solid shooting platform with virtually no unwanted movement. When folded, the cam-actuated hinge positively retains the stock against the receiver, eliminating flop and keeping the package compact for transport and storage. Out of the box, the stock features a comfortable 10.5" length of pull — included spacer plates and extended mounting screws allow users to customize fitment up to an additional inch to accommodate body armor, larger shooters, or personal preference. An integrated rotating sling swivel supports modern sling configurations, and a rubber buffer and retainer assembly ensures broad platform compatibility.

Notable Features

• Durable glass-filled nylon construction — lightweight and built for hard use
• Positive-locking push-button latch system for a solid, rattle-free deployed position
• Cam-retained folding mechanism keeps stock secure and compact when folded
• Adjustable length of pull from 10.5" to 11.5"
• Integrated rotating sling swivel for modern sling configurations
• Includes rubber buffer and retainer assembly for broad platform compatibility

What's Included

• Folding stock
• Two 1/2" spacer plates
• Extended mounting screws
• Rubber buffer and retainer assembly

Compatible With

• MAC 5
• MP5
• SP5
• MP5SD
• HK94
• MP5K Reverse Stretch
• HK33
• HK53
• HK53K
• HK93

Important Legal Information

NFA Compliance Notice: Installation of this product on certain firearm configurations may result in a firearm regulated under the National Firearms Act (NFA). It is the owner's responsibility to comply with all applicable federal, state, and local laws before assembling or modifying any firearm.