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KRISS USA Vector Folding Stock for Hinged Upper Black KVA FSBL00 UPC 810237023686
Product Description
The KRISS USA Vector Folding Stock Assembly in Black (SKU: KVA-FSBL00 / UPC: 810237023686) is an authentic factory replacement and upgrade stock designed specifically for KRISS Vector hinged upper receiver models. Engineered to preserve the compact footprint and legendary ergonomics of the Vector platform, this polymer folding stock allows users to transform their Vector carbine or short-barreled rifle (SBR) into an ultra-packable tactical setup.
Constructed from high-density, impact-resistant synthetic polymer, the stock features a heavy-duty push-button hinge mechanism that locks rigidly into the extended position with zero play under recoil. When folded to the side, the stock locks securely against the receiver body without obstructing the ejection port, trigger, or controls, allowing the firearm to be fired folded in tight quarters or stored easily in transport bags.
Featuring an integrated rear sling swivel loop and a rubberized buttpad to absorb recoil shoulder impact, the factory KVA-FSBL00 folding stock offers genuine factory reliability, seamless aesthetic matching, and drop-in installation for hinged KRISS Vector receivers.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Direct fitment for KRISS Vector Gen I and Gen II upper receivers that feature the original built-in hinged upper receiver hinge block. Will NOT fit KRISS Vector Gen II 2017+ uppers utilizing the flat rear cap / buffer tube adapter threads without the factory upper hinge adapter assembly installed. NFA Warning: Installing a stock on a pistol-configured KRISS Vector creates a Short-Barreled Rifle (SBR) subject to NFA rules and federal registration.
- Ensure the host firearm is completely clear, magazine removed, and chamber visually and physically verified empty.
- Align the stock hinge knuckles with the factory hinge lugs located on the rear of the KRISS Vector hinged upper receiver.
- Insert the factory pivot hinge pin through the aligned hinge holes from top to bottom.
- Secure the hinge pivot pin using the retaining screw or clip, and cycle the stock side-to-side—verifying solid lockup in both extended and folded positions before staging.
Key Features
- Authentic Factory KRISS USA Component: Genuine OEM part number KVA-FSBL00 molded to exact factory specifications.
- Side-Folding Push-Button Hinge: Spring-loaded release button enables fast single-handed folding and rigid extension lockup.
- Unobstructed Control Access: Folds tightly to the side while maintaining full access to the trigger, safety, and ejection port.
- High-Impact Polymer Construction: Built from high-density polymer designed to resist severe impacts and environmental exposure.
- Integrated Rear Sling Loop & Rubber Buttpad: Built-in rear sling attachment slot and non-slip rubber pad for enhanced recoil control.
Product Specifications
- Brand: KRISS USA
- Model/Series: Vector Folding Stock (Hinged Upper)
- MPN / SKU: KVA-FSBL00 / KVA-FSBL00
- UPC: 810237023686
- Receiver Compatibility: KRISS Vector Gen I & Gen II Hinged Upper Receivers
- Material: Impact-Resistant Synthetic Polymer
- Finish/Color: Matte Black
- Country of Origin: United States
This product is only compatible with the KRISS Vector Gen 1 and early Gen 2. Your upper housing must look like the example to the right.
This stock will not work with the Gen 2.1 Vector which does not feature the original hinge mount. We do not make an adapter that allows installation onto the Gen 2.1 Vector.
Please verify correct fitment before ordering!
