The IMI Defense M4 ASB Adjustable Sniper Buttstock features adjustable cheek weld, rigid and robust one-piece design, rubberized extendable butt pad and Equipped with stabilized position handle the stock at any position for enhanced accuracy. The one-piece frame design and the combination of aluminum part make it a very stable and heavy-duty product, designed specifically for a sharpshooter to increase accuracy. Every feature of the stock designed to achieve the best results for the marksman. The stock fits a Mil-Spec standard buffer tube and can be mounted without any special tools. Each adjustable part can be adjusted on the field. If you are looking for a stable, rigid, highly durable product then choose the IMI Defense ASB – Adjustable Sniper Buttstock.