Multiple sling points are but one of the many features that make this lightweight, aluminum stock ideal for competition and tactical use. Supplied with an Uncle Mike?s QD, 1.25inch; sling swivel and stud. A lightweight, fast handling stock for sporting, tactical and competition use. Gives three sling attachment points. Uses your existing buffer tube as the top tube to keep weight to a minimum. Closed-cell, foam over-tube provides a soft, comfortable cheek weld, plus insulates your face from vibration and inclement weather. Over-tube is formulated to withstand cleaning solvents and gun oils, UV radiation, freezing temperatures, salt water and rough handling. Machined aluminum buttplate is drilled and tapped for rubber Butt Pad (included). Installation requires no modification to rifle. Requires A-2 buffer tube, buffer, and spring if replacing a collapsible M4-type buttstock.