The Geth Pulse Rifle can only be acquired on Hardcore or Insanity difficulty setting during Tali's recruitment mission at Haestrom. Overall, this weapon should be more effective against shields and barrier than a battle rifle, but will likely have less armor penetration capability.
Second, its slugs are lighter than standard Avenger slugs, but they're encased in a phasic envelope. First, the mass effect field generation technology follows a sine curve (it has a variable rate of fire).
Two anomalies differentiate these geth weapons from other stock assault rifles. Attempts to replicate this weapon have failed, but the technology recovered from Haestrom could enable several of these weapons to be built for your squad. Over time, however, they prove unreliable and difficult to repair. Geth pulse rifles are rarely retrieved from the battlefield when they are, the guns are generally functional and comparable to a stock assault rifle. Very effective against shields and biotic barriers moderately effective against armor. This geth weapon fires a rapid stream of high-energy phasic slugs.
