The Ultradyne UD Gen 2 Adjustable Butt Stock is engineered for shooters who prioritize precision and modularity. This purpose-built stock offers a reliable fit and attaches quickly to any 1913 Picatinny or mil-spec threaded rear mounting interface. It is particularly compatible with the UD Chassis and Picatinny Chassis, ensuring seamless integration into your setup. The stock is made from durable 6061 T6 aluminum and features an adjustable length of pull ranging from 12.75" to 13.75"-extendable to 14.75" with a spacer kit. Ideal for enhancing your shooting experience, this adjustable stock adapts to your specific needs and preferences, making it a valuable addition to your firearm accessories.