The gastraphetes ('belly-shooter') was developed by Greek engineers in the 5th century BC. This powerful combined the strength of a composite bow with a mechanical draw system, allowing soldiers to fire bolts capable of piercing armoured targets. The weapon was operated by bracing the stock against the belly and using bodyweight to draw the string. It was a forerunner of later siege engines like the oxybeles and the ballista.

This pack includes three models.