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HK G3

IN PRODUCTION
HK G3
Quick Overview
Manufacturer
Origin
Production
1958 - Present
Overview

The Heckler & Koch G3 is a 7.62×51mm NATO, roller‑delayed blowback battle rifle developed in the 1950s as a response to NATO’s standardization of the cartridge. Designed primarily for military service, the G3 emphasizes reliability, ease of manufacture, and modularity, featuring a stamped steel receiver, a detachable box magazine, and a robust trigger group. Its hallmark is the roller‑delayed blowback system, which provides a smooth recoil impulse while allowing a relatively lightweight bolt assembly. The rifle’s straight‑line stock, integrated bipod, and interchangeable barrel lengths made it adaptable to infantry, designated‑marksman, and police roles. The G3 earned a reputation for exceptional durability in harsh environments, simple field maintenance, and consistent accuracy out to 800 m, becoming one of the most widely exported battle rifles of the Cold War era. Distinguishing characteristics include the unique dual‑roller bolt, a hinged dust cover that doubles as a forward assist, and a versatile sighting system with a rotary drum rear and hooded front post.

Calibers & Ammunition
Dimensions
Overall Length
985 mm (38.8 in) with stock extended; 820 mm (32.3 in) with stock folded (G3A4)
Barrel Length
450 mm (17.7 in) standard; 508 mm (20.0 in) G3A4; 406 mm (16.0 in) G3A3 carbine
Weight
3.05 kg (6.73 lb) empty, 3.75 kg (8.27 lb) loaded with 20‑round magazine
Mechanical
Action Type
Roller‑delayed blowback, closed bolt; bolt carrier with dual rollers and a locking piece; gas‑free operation
Trigger Type
Single‑stage, two‑position safety (fire selector) with semi‑automatic, three‑round burst, and full‑auto modes
Sights Type
Standard: rotary drum rear aperture (adjustable 100–500 m) and hooded front post; optional: telescopic (e.g., 4×24) and night sights
Magazine Capacity
20 rounds standard steel box; 30‑round steel box; 10‑round magazine for restricted markets; 50‑round drum (rare)

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