The Daniel Defense 10206145012 product is a highly-adjustable buttstock designed by Daniel Defense. It\'s uniquely crafted from a proprietary mix of glass-infused polymers and embellished with soft touch rubber overmolding at vital points. One of its standout features is the precision forming for mil-spec receiver extensions, substantially reducing unwanted forward or lateral movement often seen in other buttstocks. This precision eliminates the requirement for tensioning devices or friction locks.The buttstock comes with the flexibility to use one of the two included buttpads or go without a buttpad altogether. This feature aims to custom fit your rifle to any type of gear the operator might wear. In addition to that, the buttpads are available in two different sizes. There\'s a thicker convex-shaped one measuring 0.8, and a thinner concave-shaped version measuring 0.5. These shapes are intentionally designed to prevent any snagging when you shoulder the rifle. Furthermore, the buttstock comes with limited rotation QD swivel attachment points on both sides. This integrated feature facilitates an ambidextrous sling connection, augmenting the user-friendliness of the product.