Sylvan Arms AR-15 Folding Stock Adapter - Gen 3

Manufactured by Sylvan Arms
Manufactured by Sylvan Arms
4 Reviews

In Stock

NOTE: Limit 2 per household. Quantities exceeding 2 will not allow checkout.

We are fully staffed and processing orders. Standard orders are shipping in approximately 5 business days. FFL orders take approximately 20 business days or less if you can provide us an actively receiving FFL location.



The Sylvan Arms Gen 3 AR-15 Folding Stock Adapter is compatible with 5.56 and .308 pattern rifles and allows you to fold your stock for a more compact package for storage. It simply screws into the receiver extension slot where your buffer tube would and then you screw your buffer tube into the stock adapter. The gen 3 folding stock adapter is CNC machined from 7075-T6 aluminum with a heavy duty hinge and hardcoat anodized black for long term corrosion resistance.

Note: Do not fire when open.

  • Compatible with all AR platforms
  • Compatible with 9mm with Sylvan Arms 9mm bolt conversion (not included)
  • CNC machined from 7075-T6 aluminum
  • Hardcoat anodized black
  • Includes buffer extension
  • Includes castle nut and end plate
  • Thread specifications: 1-3/16″ X 16
  • Hinge dimensions: 3 11/16 inches
  • Hinge weight: 6.0 oz, BC – Extension 2.2 oz
  • Hinge length: 1.3 inches
  • Limited lifetime warranty

From 9mm conversion blocks, to rifle tools, to stock adapters, Sylvan Arms produces premium, affordable, firearms, gunsmith tools, and accessories.
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BrandSylvan Arms
MaterialAluminum - 7075-T6
Sling MountQD Sling Swivel
StorageNot Storage Capable
Weight6 oz.

Ratings & Reviews

4 reviews

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Works great


Worked great on Foxtrot Mike's 9mm AR. Easy install. No issues. Very happy with it. Slightly on the heavy side, but it's well made.

Great price compared to others


compared to others its price is amazing and I used it on a custom build 357 sig AR that i can now carry in a small backpack thanks to this folding adapter

So far so good


Purchased this and so far 300 rounds and no problems. Supposed to have fixed the problems the gen 1 & 2 and as of this point ,have no complaints.

Just cool


Real eazy swap installed in about 30 min, went to shoot worked fine nice addition to 556 pistol. i just need a dolos and this build is done.. THANKS P A