The MBA-3 adjustable Rifle Buttstock Assembly is a complete kit that includes everything you need to assemble a carbine buffer system on your .308/7.62 AR lower. The kit includes an MBA-3 Buttstock that features a 3-Axis Buttplate with Length-of-Pull adjustment as well as Height and Lateral adjustments, and an adjustable Cheek Rise in a lightweight, affordable carbine buttstock. Comes complete with Mil-Spec 6-position carbine Buffer Tube, .308/7.62 Buffer, .308/7.62 Buffer Spring, Latch Plate and Lock Ring. The modular design of the MBA Buttstock allows you to configure your buttstock to your specific and personal needs. Built-in rail attachment for attaching a monopod. The MBA features m Mfg: Luth-Ar