This M1A/M14 Recoil Extension Buttpad decreases felt recoil and adds 1" to the original Springfield Armory stock of your M-14/M1A rifle. The rubber m-14/m1a buttpad stock extension replaces the original steel buttplate and provides cushioned recoil absorption on your original factory stock for comfort. This rubber butt pad is simple to install because it uses the existing screws from your original rifle stock steel butt plate and requires no permanent modifications. Most M1A M14 and comparable clones are compatible with this aftermarket Buttpad. Size is 1" in width, 5" in length, and one" in thickness. Limited Lifetime Warranty.