ČZUB Sa vz.58 or clone fitted with what looks like a Brügger & Thomet rail system, a Stormwerkz (probably) AR-15 collapsible stock adapter with a Colt 4th-gen style collapsible stock, an Aimpoint CompM3 (or earlier Comp variant in the M3's rubber cover) reflex sight with an Aimpoint clear front cover on an ARMS #22M68 mount, and a Laser Devices DBAL-A2 laser aiming unit/IR illuminator.

Sub-machine gun looks to be a ČZUB SA 361, a later 9x19mm variant of the Skorpion family.