The Mortar Plate™ was designed for those who need anentry-type stock for their rifles. Made to fit both the commercial and militaryspec receiver extension tubes, the Mortar Plate™ is machined from rock-solidbillet aluminum then type III hard coat anodized. The Mortar Plate™ offers asmall section of picatinny rail on the base for mounting monopods. There arefive quick-detach sling swivel pockets for a variety of sling and carry styles.To extend the length of pull, add the .5” or 1” recoil pad.