The Accuracy International AX MKII/AT .308 Win 6 Lug 1.6mm Tip DIA Bolt Head Assembly is a precision-engineered component designed to enhance the performance of your AX MKII or AT rifle. This bolt head assembly provides reliable and consistent ignition, ensuring optimal accuracy and performance. The robust construction ensures durability and reliability in demanding conditions, making it an essential upgrade for both professional and recreational shooters.