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Military

How long is an M9 bayonet?

An M9 bayonet is about 30 cm (11.8 in) long.

What is measured: US military combat bayonet, blade and handle length

M9 Bayonet (30 cm) drawn to scale beside a smartphone (14.7 cm) and a bowling pin (38.1 cm)
Drawn to scale, from left to right: Smartphone (14.7 cm), M9 Bayonet (30 cm) and Bowling pin (38.1 cm).

Compare

How big is that, really?

  • As long as about 4 credit cards end to end
  • About 79% of the height of a bowling pin
  • About 2× the height of a smartphone
  • About 18% of the height of an adult person
  • About 15% of the height of a doorway

Learn

Facts about M9 Bayonet

The M9 bayonet doubles as a wire cutter when combined with its scabbard.

Source: US Army technical manual TM 9-1005-314-23&P

Military

NameSizeCompared with M9 Bayonet
PASGT Combat Helmet18 cm (7.09 in)0.6×
Colt M1911 Pistol21.6 cm (8.5 in)0.72×
Desert Eagle Pistol26.9 cm (10.6 in)0.9×
Colt Single Action Army27.9 cm (11 in)0.93×
M9 Bayonet30 cm (11.8 in)this page
Roman Gladius Sword65 cm (2 ft 2 in)2.2×
Medieval Crossbow70 cm (2 ft 4 in)2.3×
Thompson Submachine Gun81 cm (2 ft 8 in)2.7×
MP40 Submachine Gun83.3 cm (2 ft 9 in)2.8×
AK-47 Rifle87 cm (2 ft 10 in)2.9×

Test your sense of scale

Which is bigger: M9 Bayonet or Colt M1911 Pistol?

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