The Sylvan Arms Folding Stock Adapter allows you to fold your stock and significantly reduce the length of your rifle for easy stow and travel.

Specifically designed for gas piston and direct impingement systems .223 / 5.56 to .308 systems, it has standard 1-3/16” x 16 thread and does not require any additional parts to be used with standard Bolt Carrier Groups.

It is CNC-machined in the USA from 7075 Billet Aluminum, making it uniquely lightweight and corrosion-resistant. This assembly weighs only 6.0 ounces. No special tools required; only a standard armorer’s wrench. The product does not need to be disassembled in order to install it onto your rifle/pistol.

Simply screw on, fold and carry!

Product Details

  • Includes standard .625 Bolt Extension
  • Fit: Platforms .223/5.56 to .308 & Most 9mm
  • 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
  • For smaller diameter BCG’s, we have 17/32 .531 bolt extensions available 
  • 300 blk (blackout) compatible
  • Adds 2 inches to length of pull
  • If your bolt carrier group is causing the bolt extension to come up short contact us for a conversion

Specifications

  • Finish: Hard Coat Black Anodized
  • Material: 7075 CNC-machined billet Aluminum
  • Thread specifications: 1-3/16″ X 16
  • Hinge dimensions: 3 11/16 inches
  • Hinge Weight: 6.0 oz. Bolt Extension: 3.1 oz.
  • Hinge length: 1.3 inches
  • Warranty: limited lifetime

Designed, built and assembled in the USA