| M1946 Sieg automatic rifle | |
|---|---|
 M1946 Sieg bullpup from a June 1946 article in Popular Science | |
| Type | Bullpup battle rifle |
| Place of origin | United States |
| Production history | |
| Designer | James E. Sieg |
| Designed | 1946 |
| No. built | 1 (prototype model) |
| Specifications | |
| Mass | 10+1⁄2 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 semiautomatic and fully 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 with the installation of 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 patent USPTO 2,451,514 for his compensator in 1948.[4]
