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Heckler & Koch G3

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Heckler & Koch G3A3
Production information

Heckler & Koch GmbH


Battle rifle

Technical specifications


  • 84 cm (stock retracted)
  • 102.5 cm (stock extended)
Feed system
  • 20-round detachable box magazine
  • 30-round detachable box magazine
  • 50-round detachable drum magazine
  • 7.62×51mm NATO

Roller-delayed blowback, closed bolt


500 m (effective)


Late 20th-present


The Heckler & Koch G3 is a family of German-made battle rifles chambered for 7.62×51mm NATO.


The G3 traces its origins back to WWII, and was initially developed from the successful German MG 42 machine gun. Over the subsequent decades, the weapon was refined and improved through several iterations, before the G3 went into full-scale production in 1959. The weapon can accept a wide array of accessories, including various optics, illumination devices, laser sights and suppressors — Heckler & Koch notably manufacture a quick-release scope mount for the weapon. The weapon has been issued by numerous armies around the world, and has been a feature of several conflicts, including the Vietnam War, the Troubles in Northern Ireland, the Iran-Iraq War and both Gulf Wars.

The G3 was subsequently used as a design base for the popular MP5 series of submachine guns, which feature several similarities and operate using the same internal mechanism.


Numerous variants of the G3 are offered, including a large number of trigger grouping, barrel length and stock combinations. Heckler & Koch also produce a designated marksman variant of the rifle, the G3SG/1, developed from individual rifles selected from the production line for their accuracy, and a sniper variant, the PSG-1.


In Predator 2, several of the Colombian Scorpions in the opening shootout are equipped with G3A3 rifles. Several LAPD officers in the same scene are also armed with G3A3s, theirs fitted with Imatronic LS45 laser sights.


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