• Specifically designed for gas piston and direct impingement .223 / 5.56 to .308 systems
  • Significantly reduces the length of your rifle by allowing you to fold the stock for stow and travel
  • Works with all standard bolt carrier groups and buffer systems
  • Lightweight and corrosion resistant
  • Adds 2 inches to the length of a rifle’s pull when extended


  • Material: 7075 Billet Aluminum
  • Finish: Hard Coat Anodized
  • Weight: 6.63 oz.
  • Overall Length: 2.64"
  • Width: 2.13"
  • Height: 2.08"


  • Mil-Spec AR lower receiver and AR buffer tube
  • 300 Blackout compatible
  • Most 9mm AR platforms (9mm bolt carriers with standard sizing, 5/8 ID (.625) can use the included bolt extension after removing the pin and weight from the back of the BCG)
  • Some 9mm AR platforms with .531 bolt opening in the back of the BCG can use Sylvan Arms .531 AR9 Bolt Extension

*If your bolt carrier group is causing the bolt extension to come up short, contact Sylvan Arms for a conversion

*Does NOT work with Tippmann 22 or LWRC Pistols

*Many States and localities regulate the use or possession of collapsible and folding stocks. Use or possession of this product in conjunction with certain other parts may be illegal in some jurisdictions. Please ensure your use of this product complies with all Federal, State, and local laws and regulations before purchase.


  • 1x Sylvan Arms Folding AR Stock Adapter (Gen 3)
  • 1x Bolt Carrier Extension
  • 1x End Plate
  • 1x Castle Nut


AR-15s are easily the most popular rifles in America. However, one of the biggest drawbacks of using these rifles is that they can’t have folding stocks since their buffer tubes extend into their stocks. The Sylvan Arms Folding AR Stock Adapter is the perfect solution to this problem. With a short-barreled rifle — commonly called an SBR — folding stock, you can completely change how you use your AR-15.

How the Sylvan Arms Folding AR Stock Adapter Works

The Sylvan Arms Folding AR Stock Adapter is specifically designed for direct impingement rifles like the AR platform. It’s compatible with all standard bolt carrier groups and buffer systems. You install the adapter between the receiver and the buffer tube on your AR-15, allowing you to fold your stock to the side with the buffer tube. It’ll allow you to easily carry your rifle in confined spaces, like in a car. You’ll then be able to extend the stock when it’s time to fire your AR-15 without encountering any issues.

The Benefits of Using This SBR Folding Stock

This is far from the only folding stock for an AR-15 on the market today, but you’ll find that this particular option will provide you with many benefits when you begin putting it to good use. It’s lightweight and extremely durable since it’s made out of 7075 billet aluminum and has a hard-coat anodized finish. It’ll also add 2 inches to your rifle’s length of pull and make it easier to manage when you’re carrying it around.

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