AGM-154 JSOWAGM 154 JSOW display model. The AGM Joint Standoff Weapon (JSOW) was a cost effective but highly lethal glide bomb in the 1,000 lb class. It was a kinematically efficient air to ground missile that provided standoff capabilities from a low altitude launch of 15 nautical miles to high altitude launches of 40 nautical miles. Its modular design provides extra flexibility, allowing it to carry a variety of sub munitions, unitary warheads, or non lethal