Magpul MAG1447BLK DT-PR Carbine Stock Black Fits AR10/AR15/M4/M16/M110/SR25The DT PR stock is the Precision Rifle (PR) variant of our new Dual Tension (DT) series of carbine stocks. It incorporates Magpuls proprietary, patent pending DT adjustment system, mitigating play between the buffer tube and the stock, resulting in a tighter fit across the stocks entire length of pull. It also minimizes snagging of facial hair and skin where the shooters face contacts the stock.