SKU: IQSA5PR
MPN: SA5P-R
The Sylvan Arms SA5 Pro AR-15 Folding Stock Adapter Gen. 5 Right Fold (SA5P-R) turns a standard AR into a shorter, easier-to-transport package by letting the stock fold toward the ejection port. It's built for shooters running mil-spec AR-15 rifles, most AR-10 builds, and most 9mm ARs who want a compact profile without giving up a full-length stock at the range. Sylvan Arms rates the Gen 5 design as roughly 250 percent stronger than the older Gen 4 unit, and it accepts a standard 1-3/16 x 16 threaded buffer tube. Made in the USA and offered by 10 Ring, it's a direct upgrade for anyone building toward a truck gun or a shorter storage footprint.
The SA5P-R installs by threading directly onto the receiver extension in under five minutes, so there's no cutting, welding, or permanent modification. The right-fold orientation clears the ejection port and keeps the folded stock tight against the receiver. Sylvan Arms lists compatibility across 223/5.56, 300 Blackout, .308, and most 9mm AR platforms, which covers the majority of common AR builds. The adapter is user-serviceable, meaning the hinge and detent hardware can be maintained rather than replaced as a sealed unit. Because it uses a standard 1-3/16 x 16 thread, it works with the same buffer tubes and receiver extensions found on most complete stock and buffer components, so you can pair it with a mil-spec tube and the stock you already run.
A folding adapter earns its place on short-barrel builds, pistol-configured lowers, and any rifle you need to break down for a pack or vehicle. Fold the stock and the overall length drops enough to fit cases and bags that a fixed setup won't. When you're ready to shoot, the stock snaps back into a locked firing position. If you're building out the back end of an AR, this pairs naturally with a mil-spec buffer tube and a collapsible stock, or step up to a heavier precision stock for range work. Compare it against the left-fold version if your setup needs the hinge on the other side.
Pricing on the SA5 Pro Gen 5 right-fold adapter (SA5P-R) is listed on this product page. Availability and price can change, so check the live listing at TSA for the current figure before ordering.
No. The SA5P-R threads directly onto a standard 1-3/16 x 16 buffer tube and installs in under five minutes. There's no cutting, welding, or drilling, so the adapter can be removed later if you change your build.
Sylvan Arms lists the SA5 Pro as compatible with mil-spec AR-15 rifles, most AR-10 builds, and most 9mm ARs, along with 223/5.56, 300 Blackout, and .308 chamberings. Confirm your receiver extension uses the standard 1-3/16 x 16 thread.
The right-fold SA5P-R folds the stock toward the ejection port on the right side of the rifle, while the left-fold model folds to the opposite side. Choose based on which side keeps the folded stock clear of your controls and grip.
The SA5 Pro is a folding stock adapter meant to reduce length for transport and storage. It locks into a firing position when extended. Follow the manufacturer's guidance on operation with the stock folded for your specific configuration.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
