Heckler & Koch MP5

The Thompson submachine gun, often called the "Tommy Gun," is a blow‑back, selective‑fire SMG designed in the early 1920s to provide a high‑rate, close‑quarters firepower platform for law‑enforcement, military, and civilian markets. Its hallmark is the exceptionally fast cyclic rate of 600–1,250 rpm, achieved through a heavy bolt and a simple open‑bolt blow‑back system. The weapon’s distinctive vertical‑handguard, cut‑away rear sight drum, and iconic wooden stock set it apart visually. Originally chambered for .45 ACP, the Thompson was praised for its stopping power and reliability, gaining a reputation as both a feared gangster weapon and a beloved "trench broom" in World War II. Unique features include a two‑stage trigger for semi‑automatic fire, a built‑in compensator on the barrel, and interchangeable 20‑, 30‑, and 50‑round drum magazines, making it versatile for both rapid suppressive fire and controlled single shots.

The Kriss Vector is an American submachine gun manufactured by Kriss USA. Its most distinctive feature is the patented Super V recoil mitigation system, which redirects recoil energy downward rather than into the shooter's shoulder, dramatically reducing muzzle climb and felt recoil.

The SIG MPX is a modern submachine gun manufactured by SIG Sauer, chambered in 9×19mm. Unlike most SMGs that use simple blowback actions, the MPX uses a closed-bolt, short-stroke gas piston system derived from the SIG MCX rifle platform, providing superior controllability and accuracy.