 The M8 is armed with the M35 rifled autoloading 105 mm cannon main gun with an M240 7.62 mm machine-gun mounted coaxially.The M35 has a rate of fire of approximately 12 rounds per minute, with a ready capacity of 21 rounds and 24 more in hull stowage.A Browning M2 .50 caliber heavy machine gun is mounted in a manually-operated pintle on the commander's hatch.