The stock FN SCAR factory stock—often referred to as the "Ugg boot"—offers adjusting capability, but its bulky footprint, plastic rear hinge interface, and wide cheek profile can leave a lot to be desired during fast-paced tactical shooting or when running high-mount optics.

Officially licensed by Kinetic™ Development Group, the PTS Kinetic SAS SCAR Adaptable Stock Kit (Aluminium Alloy Version) brings the battle-proven ergonomics of the Magpul-designed PTS Masada folding stock directly to your SCAR GBB receiver. At the core of this conversion is a heavy-duty, CNC-machined 6000-series aluminum mounting block that secures directly to the rear of the SCAR lower. This metal adapter eliminates rear-end flex under GBB bolt recoil, housing a fully assembled PTS Masada stock featuring 7 length-of-pull positions, a positive spring-tension side fold mechanism, and a multi-height adjustable cheek riser. 

Key Features & Technical Highlights

• 6000-Series Aluminum Adapter Block: Precision-machined aluminum hinge mount with a black anodized finish ensures rock-solid lockup and eliminates wobble under blowback recoil.
• Pre-Assembled PTS Masada Folding Stock: Integrates the sleek, contoured Masada stock with positive spring-tension locking when folded or deployed.
• 7 Telescoping LOP Positions: Fine-tune your length of pull across seven detents to comfortably clear body armor or low-profile chest rigs.
• Integrated Adjustable Cheek Riser: Elevates instantly to align your sightline with tall optical risers, LPVOs, or red dot sights.
• Reversible QD Sling Cup: Built-in steel QD pocket accepts standard push-button sling swivels and can be swapped to either side of the stock.
• Complete Drop-In Mounting Hardware: Package includes aluminum spacers, hex fasteners, and custom 3D-printed filler inserts for seamless fitting.

Technical Specifications

• Brand: PTS Syndicate (Fully licensed by Kinetic™ Development Group)
• Product Name: SAS SCAR Adaptable Stock Kit (Alum Alloy Version)
• SKU / Part Numbers: KN003490307 (Black Adaptor / Black Stock) / KN003490313 (Black Adaptor / Dark Earth Stock)
• Materials: Reinforced Polymer (Stock Body), 6000-Series Aluminum (Adapter Block)
• Finish: Textured Polymer / Black Anodized Aluminum
• Dimensions: 215 x 135 x 58 mm (Product)
• Weight: Approx. 510g (Without packaging)
• Platform Compatibility:
  • VFC SCAR-H GBB
  • Guns Modify SCAR-L GBB (Requires 2 included filler pieces)

Operational Applications

• SCAR GBB Ergonomic Overhaul: Replaces factory polymer stock hinges with a bulletproof aluminum mounting point and slimmed-down cheek weld.
• Optic-Specific Sight Alignment: Rapidly adjust cheek weld height when switching between flat red dots and magnified LPVO scopes on elevated mounts.