The Scorpion EVO 3 S1 is a whole new animal. Building on the lauded sub-machine gun platform that first hit the US civilian market in pistol form in 2015, the Carbine has a 16.2″ barrel fitted with a compensating muzzle brake. Fit with the factory’s folding adjustable stock, the Carbine features a number of US-made parts to make it fully 922(r) compliant. One of the nicest features of the firearm is the newly-designed forend, covered in M-LOK attachment points to keep the profile slim while still being big enough to swallow most pistol-caliber suppressors should the owner decide down the road to convert it into an SBR for use with a suppressor. Low-profile aluminum adjustable sights round out the platform, and a top Picatinny rail allows the mounting of a wide number of optics. Simple and reliable, the Scorpion not only has ambidextrous controls, its non-reciprocating charging handle is swappable and reach to the trigger is adjustable.