Product Description The Ultradyne USA UD3 Combo Chassis is a precision-engineered rifle chassis designed specifically for the Ruger American Short Action in a right-hand configuration. Machined from a solid bar of 6061 T6 Aircraft Aluminum, this chassis delivers exceptional strength, rigidity, and durability without unnecessary weight. The one-piece construction weighs between 1.1 and 1.5 pounds depending on the model, making it compatible with hunting rifles as light as 6 pounds and long-range target rifles up to 16 pounds. When paired with the included Ultradyne Adjustable Butt Stock, the total package remains lighter than most factory stocks while still offering the option to add up to 5 pounds with optional weights. This combo includes the chassis, adjustable butt stock, and FAB Defense Gradus pistol grip, delivering a complete and ready-to-install solution with a matte black finish. Product Highlights Aircraft-Grade Aluminum Construction: Machined from a solid bar of 6061 T6 Aircraft Aluminum for outstanding strength and long-lasting durability. Complete Combo Package: Includes the chassis, Ultradyne Adjustable Butt Stock, and FAB Defense Gradus pistol grip for a fully functional system right out of the box. AICS Magazine Interface: Compatible with AICS-pattern detachable box magazines, offering versatility and reliable feeding. 3-Slot M-LOK Compatible Rail: Features a 3-slot rail section for easy attachment of accessories, bipods, and other tactical components. Lightweight and Scalable: Versatile enough for hunting and long-range target shooting, with the ability to add up to 5 lbs of optional weights for fine-tuned balance. Specs Brand: Ultradyne USA Model: UD3 Manufacturer Part Number (MPN): UD20174-AB UPC: 810140664297 Product Type: Rifle Chassis (Combo) Fitment: Ruger American Short Action Hand: Right Hand Finish/Color: Matte Black Material: 6061 T6 Aircraft Aluminum Max Barrel Diameter: 1.35" Magazine Interface: AICS Grip: FAB Defense Gradus Rail Slots: 3 Slot Includes: Chassis, Butt Stock, and Grip Package Dimensions: 24.25" L x 8.5" W x 24.25" H Package Weight: 4.25 lbs Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>