AR Folding Stock Adapter Gen. 3 – 14 DAY BACKORDER

AR Folding Stock Adapter Gen. 3 – 14 DAY BACKORDER


Available on backorder

*** Please note there is a 14 day delay from the time your order is placed to shipment ***


The Sylvan Arms Folding Hinge 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 5.56 to .308 systems, as well as .223 compatible, it has standard 1-3/16” x 16 thread and does not require any additional parts to be used with standard BC 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 on to your rifle/pistol.

Simply screw on, fold, and carry!


• Fit: platforms .223/5.56 to .308 & most 9mm:
– 9mm bolt carriers with 5/8 ID (.625) standard sizing can use the bolt extension included, after removing the pin and weight from the bolt carrier
– 17/32 .531 bolt extension for smaller bolt carriers is available here
– If your PSA bolt carrier is causing the bolt extension to come up short contact us for a conversion.
– Does NOT work with Silent Capture Buffer Springs
– Does NOT work with JP Enterprise Buffer System
300 blk (blackout) compatible
– Adds nothing to length of pull
• Surface treatment: 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, BC – Extension 2.2 oz
• Hinge length: 1.3 inches
• Warranty: limited lifetime

Designed, built, and assembled in the USA

[Download Manual]

6 reviews for AR Folding Stock Adapter Gen. 3 – 14 DAY BACKORDER

  1. Ger Lo (verified owner)

    Here’s my honest review. I was comparing this with Law Tactical. Watched all YouTube reviews of both. I was on a budget building my AR15 Pistol. I decided to go with Sylvan Arms. Boy did I make the best decision. The adapter was sturdy and my arm rest stayed in place. The bolt extender fit perfectly. I shot 200 rounds of mixed grains without any hiccups. I hit 5″ clay tagets at 100 yards with my iron sights perfectly. I’m pretty sure Law Tactical is good too but I’m sold on Sylvan Arms. Cheaper in price and quality is pretty stout.

  2. Rosario

    Wanted a pack my ar pistol in my backpack but it would not fit, I searched and came across this and I am very pleased with this product. It locks in nice and it is very sturdy. Something to consider if a gen 4 is manufactured is an adjustable tension mechanism for when the stock/brace is folded. The stock/brace is pretty loose in the folded position and would have loved an option to make it a bit more sturdy so it would not easily swing back to the closed position.

    Overall: 5/5

    Recommend: Yes!

    Build: solid and very well finished

    Functionality: 99% perfect with the exception of the mentioned above

    Installation: fairly easy, armorers wrench needed.

  3. charleslorenzohicks (verified owner)

    Just as good as the law tactical.. Nowhere near the cost.. Works perfect on my CQB Aero Precision 300 Blackout. Able to easily fit into my Vertx backpack NOW with room for several high capacity Mags. Locking mechanism is strong.. very easy to deploy. Will definitely purchase again for my 223 / 556 custom build.

  4. Jason

    This works very well and feels very sturdy. I doesn’t sit flush like the LT does so some threads show but I’m still satisfied with it. IMO the action of folding, unfolding, and staying feels better than the LT. The price point is a lot more reasonable. IMO this is the better buy for sure.

  5. Josh (verified owner)

    I ordered this to go on my AR pistol so I could fit it in a Vertyx Gamut pack. Fits perfect with this adapter.
    This was a 5 minute install with the right tools, that everyone who has an AR should have. Highly recommend, and the stickers they gave me were huge!

  6. David Rivas

    Awesome addition to my rifle. easy to install and no impact on firing.

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