The Springfield Hellion is a semi-auto rifle in 5.56/ 233 REM caliber. With a bullpup configuration where the action is behind the trigger, it redefines perceptions of semi-automatic 5.56mm firearms. The Springfield Hellion features an overall length of only 28 inches and a 16” barrel. Its ambidextrous controls work in concert with a reversible case ejection system. The result is a 5.56 that combines portability with powerful performance.