Simple Glide Bomb
Simply attach it onto any airframe.
Faster airframes are recommended, to give it extra range as well as margin for error.
Press Abort to extend the switchblade wings
Press [AG0] to re-orient the control probe. This is essential to guide the bomb to your target
Can accurately hit an area of ~7m. It all depends on the pilot in the box; or rather, the pilot controlling the bomb, in the box.
A stock subassembly called Joint Standoff Glided Bomb - JSGB. Built with 37 of the finest parts, its root part is smallHardpoint.
Built in KSP version 1.12.3.