Made from glass fiber reinforced material is is rugged, strong and withstands any kind of weather. The rubber grip and fore end surfaces gives you a firm grip in wet and cold conditions. Berserk stocks comes with pillar bedding Blocks made from 65% glass fiber as standard and do not need glass bedding! Recommended torque is 5nm. Please note The Berserk comes in right hand configuration only. The new adjustment system locks on the maximum LOP of 30 mm.