Midwest Alpha M4 Beam Side Folder

The Midwest Industries Alpha M4 Beam side folder allows you to easily add any mil-spec stock to your side folding firearm

Original price was: $174.95.Current price is: $164.95.

Out of stock

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SKU: MWMI-ALPHA-M4BSF Categories: , ,

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Introducing the Alpha M4 Beam Side Folder by Midwest Industries. Enhance your firearm with this innovative and versatile stock adapter. Designed for the discerning shooter, this adapter allows you to easily add any milspec stock of your choice to your side folding beam design.

With a seamless connection to a 1913 interface, you can customize your firearm to suit your preferences and shooting style. Crafted with the utmost attention to detail, the Alpha Series M4 Beam features a heavy-duty side-folding mechanism constructed from 4140 steel. This ensures exceptional durability and reliability, providing you with a stock adapter that will stand the test of time.

To ensure maximum strength and stability, the Alpha Series M4 Beam boasts a full-length locking lug. This innovative design guarantees a solid positive lock up in both positions, giving you confidence in the performance of your firearm. We understand the importance of a secure attachment, which is why the Alpha Series M4 Beam is equipped with a steel clamp that provides a large surface engagement. This ensures a rock-solid connection between the stock adapter and your firearm, allowing for optimal performance and functionality.

Customization is key, and the modular design of the Alpha Series M4 Beam accommodates different stock attachments. Whether you prefer a collapsible stock or a fixed stock, this versatile adapter can be configured to suit your needs. Furthermore, it can be easily set up for right or left folding, adding even more flexibility to your firearm setup.

Equipped with 2 QD sling attachments, the Alpha Series M4 Beam offers enhanced convenience in carrying and handling your firearm. Attach your sling with ease, giving you the freedom to move and operate your firearm comfortably and efficiently. Order the Midwest Alpha M4 Beam Side Folder today and experience the ultimate versatility and functionality for your firearm.


  • Heavy-duty side-folding mechanism constructed from 4140 steel
  • Full-length locking lug for maximum strength
  • Solid positive lock up in both positions
  • Steel clamp with large surface engagement
  • Can be configured to right or left folding
  • Modular design can accommodate different stock attachments
  • 2 QD Sling attachments
  • Compatible with Mil-Spec diameter stocks
Weight 0.8800 lbs
Dimensions 10.0000 × 2.5000 × 2.5000 in

Midwest Industries






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Midwest Alpha M4 Beam Side Folder

Out of stock