NIVA stood for Nytt Infanteri Vapen or New Infantry Weapon. The engineers created a weapon that combined a bullpup assault rifle with a recoilless rifle design. If you’re familiar with recoilless rifles, they mount over your shoulder, allowing the backblast to fire rearward and out of the tube. This creates the recoilless effect.
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The NIVA XM1970 - An Infantry Recoilless Rifle
The XM1970 was an experiment by Carl Gustav to create an advanced infantry weapon designed for destroying armor as it crossed the Fulda gap
