[Source] A needler was a type of pistol designed to penetrate personal energy shields by firing a sharp, tiny dart. The dart could also be laced with contact poison, delivering the poison to its targets. The NX-14 was a popular model. A needler cost 650 credits and weighed 1 kilogram. The needler required an ammunition clip which cost 20 credits and weighed 0.1 kilograms. After 10 shots, the clip must be replaced. The Galactic Empire's E522 assassin droid possessed a neurological needler among its formidable arsenal.