Sylvan Arms AR Folding Stock Adapter Gen 4 – Right-Hand Eject AR-15

The Sylvan Arms Gen 4 Folding Stock Adapter allows AR-15 rifles to fold at the receiver extension, reducing overall length for transport and storage without removing the stock. Designed for right-hand ejecting AR platforms, this adapter lets the rifle fold to the left side, maintaining ejection port clearance. Ideal for vehicle storage, backpack carry, or compact safe placement while retaining quick deployment capability.

Machined from 7075-T6 aluminum with a Type III hard anodized finish, the Gen 4 adapter installs between the lower receiver and buffer tube using the existing castle nut and end plate. Installation requires basic AR armorer tools and knowledge of lower receiver components—no permanent modifications to the firearm. The hinge mechanism locks securely in both the folded and extended positions. Note: rifle cannot be fired while folded.

• Part Type: Folding Stock Adapter
• Compatible Firearms: AR-15 (right-hand ejection)
• Material: 7075-T6 Aluminum
• Finish: Type III Hard Anodized
• Installation: Drop-In (basic AR armorer tools required)
• Includes: Adapter, mounting hardware, installation instructions