Strike Industries FSA Single Side Folding Stock Features The Strike Industries FSA Single Side Folding Stock uses a strengthened steel hinge in place of the aluminum hinge found on Strike s dual folding adapter giving this single-side folder a noticeably more robust lock with little to no play whether the stock is extended or folded. The folding mechanism works at any time without needing to press a button or reconfigure anything first so transitioning between folded and extended positions is immediate. A 3 degree downward tilt built into the design keeps the folded arm clear of the ejection port preventing interference with the action during cycling. Mounting is straightforward using a single hex screw in the hinge adapter to clamp onto any rear-facing 1913 Picatinny rail. Two QD sling points are positioned at the 3 and 9 o clock locations on the stock end piece giving the user flexible attachment options for a sling regardless of their preferred carry method. At just 11 ounces on its own the stock adds minimal weight to a build making it well suited to lightweight pistol caliber carbines PDW-style AR-15s or chassis systems like the SMC Bravo. The stock s matte black finish and steel and aluminum construction are built to hold up to repeated folding cycles without loosening over time. For shooters building a compact folding stock platform this single folder offers a durable reliable solution that mounts to nearly any Picatinny-equipped receiver. Strike Industries FSA Single Side Folding Stock Specifications Manufacturer: Strike Industries Model: FSA Single Side Folding Stock Compatible Hosts: 1913 Picatinny Rail Color: Black Material: Steel/Aluminum/Polymer Mount Type: Picatinny Rail Weight: 11 oz Available At: GrabAGun