The weapon acts very similarly to the Enclave Plasma Pistol it formed the basis for, barring several prototype features. First and foremost, this weapon does more than three times as much damage as the regular Plasma Pistol, and has a higher critical multiplier (3x as opposed to 2x). However, it uses two Energy Cells to power each shot, and weighs twice as much as the normal, almost as much as an R91 Assault Rifle. It can be repaired with Plasma Pistols.
The weapon is found in the Cargo Hold area of Mothership Zeta. In one area is a Reid Underwood's Terminal (hard) which can be hacked to unlock a safe. The safe itself is found in another area among several piles of rubble, next to a machine that is dropping items into a pit. Inside the safe is the weapon, a note detailing the weapon, and Energy Cells (amount may vary due to the Scroungerperk).
The Cargo Hold becomes inaccessible after completing "This Galaxy Ain't Big Enough...", making it impossible to obtain the weapon afterwards.
While using V.A.T.S., selecting a target causes the ammo counter to drop by one, not two. The bolt will still use two Energy Cells, but this may force an unexpected reload sequence.
may sometimes disappear from inventory upon entering the teleporter to the death ray.