NEW HIGH PENETRATION 5MM Axis SPT carbon arrows FOR SHORTER DRAW/LOWER POUNDAGE BOWS. Easton s Axis SPT is the newest member of the legendary AXIS lineup offering improved field performance for bowhunters with shorter draws and/or lighter-poundage setups. The 5mm micro diameter Axis SPT hunting arrows are compatible with all Axis accessory components, including the highly demanded FOC enhancing Easton brass inserts, and now it s more affordable than ever. Product Features Pre-installed X Nock X HIT 8-32 inserts Straightness: .006 High-strength carbon-composite fibers Weight: 9.5 gpi