At SHOT Show 2025, FightLite released a line of monolithic uppers called Hypnos designed for rimfire Ruger pistols. These are drop-in uppers using FightLite’s patented Drop-On system. There will be two versions available: an upper with a threaded barrel and a monolithic integrally suppressed one. In 2016, the company announced a suppressed pistol named STEP-22LS which had uppers very similar to the integrally suppressed Hypnos. Let’s take a closer look.