The Czech rifle gone global — CZ's BREN 2 is a light, fully ambidextrous, multi-calibre assault rifle that swaps between 5.56 NATO and 7.62×39 and a range of barrel lengths. The Czech Army's standard arm, adopted by French special and police units and licence-built in Hungary.
The rifle that made the bullpup mainstream — Austria's Steyr AUG packed a full-length barrel into a compact polymer body with an integral optic and quick-change barrels, decades ahead of its time in 1978. Still produced, still serving in ~40 countries, it is Austria's defining weapon.
The QSZ-92 is China's standard-issue PLA/PAP sidearm — a polymer-frame, rotating-barrel pistol chambered in two distinct cartridge families, including a unique 5.8×21mm armor-defeating round, and now being supplemented by the newer QSZ-193.
The PKM is the Soviet Union's workhorse 7.62mm general-purpose machine gun — a belt-fed, open-bolt design that has armed infantry squads, vehicle mounts, and tripod emplacements across more than five decades of continuous combat from Afghanistan to Ukraine.
The L85A2 (SA80) is the British armed forces’ standard bullpup assault rifle — a 5.56×45mm NATO weapon with a short-stroke piston, 518 mm barrel, and a tumultuous early service life redeemed by a Heckler & Koch mid-life upgrade.