The patent pending Arisaka Stock Angle Adapter upgrades Magpul CTR stocks for precision use with three important features: changes the recoil pad angle so it is perpendicualr to the bore axis, adds height and cant adjustments to the recoil pad and changes the stock to use Magpul SL pads. This stock angle adapter is the last step to correctly fit your rifle to your body. Almost any shooter will gain a benefit from adding a level of adjustablity to the length of pull and angle of recoil pad.