FN FAL vs Heckler & Koch HK91

1953–Present

1977–2000

7,000,000+ units

~250,000 estimated

1,090 mm (42.9 in) stock extended; 1,020 mm (40.2 in) stock folded (para)

1,020 mm (40.2 in) with stock extended

533 mm (21.0 in) standard; 458 mm (18.0 in) para variant

508 mm (20.0 in)

4.25 kg (9.37 lb) empty

4.3 kg (9.5 lb) empty

20 rounds standard; 5, 10, 30 round options available

20 rounds standard, 10‑round low‑profile magazines available for restricted markets

Short-stroke gas piston, tilting breechblock, selective fire

Roller‑delayed blowback, closed bolt

Two-stage military trigger

Single‑stage semi‑automatic trigger with manual safety lever

Aperture rear sight adjustable for windage and elevation, hooded front post

Adjustable rotary drum rear sight (100‑800 m) and hooded front post; optional telescopic sight mounting rail on receiver cover