Sieg automatic rifle

M1946 Sieg automatic rifle
Type Bullpup battle rifle
Place of origin United States
Production history
Designer James E. Sieg
Designed 1946
Weight 10 12 pounds (4.8 kg)
Length 36 inches (91 cm)

Cartridge .30-06 Springfield
Action Gas-operated
Rate of fire 650–700 rounds/min
Feed system 20-round detachable box magazine
Sights Iron sights

The Sieg automatic rifle was a bullpup automatic rifle designed by Chief Gunner's Mate James E. Sieg of the US Coast Guard.[1] The weapon was chambered in the .30-06 round, fed from 20 round magazines and capable of firing around 650–700 RPM on full automatic.[2] A two-finger double trigger selected between semi- and full-automatic fire. The barrel came with a unique muzzle compensator that could be turned off for use with a flash hider or grenade launcher without interfering when also installing a bayonet. Recoil gently threw the barrel of the Sieg rifle downward, not upward. When tested at Fort Benning, it had effective results. The compensator was extremely effective; it also enabled the user to fire the rifle with one hand.[3]

Sieg obtained a patent for his compensator in 1948, as USPTO 2451514.[4]

See also


  1. Bonnier Corporation (June 1946). Popular Science. Bonnier Corporation. p. 218. ISSN 0161-7370. Retrieved 6 February 2015.
  2. "Little Known American Bullpup- The Sieg Rifle". Retrieved 7 February 2015.
  3. "US Sieg rifle". Forgotten Weapons. Retrieved November 2, 2011. reproducing an article from American Rifleman, April 1946 issue
  4. "Patent US2451514 - Compensator for guns". Retrieved 7 February 2015.

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