The AER14, a successor to the AER9 and AER12, was a prototype in development before the Great War. The unit found in Vault 22 is one of these development models, complete with exposed wiring and loose prototype circuit boards taped to the stock.
The AER14 is similar in appearance to the AER9, although it is a lighter gray scheme with an orange-red trim. It also has two integrated circuit chips housed inside its stock, which are connected to the rest of the weapon via wires. It uses two microfusion cells per shot. The AER14 also fires a green laser instead of the normal red laser.
The AER14 uses two microfusion cells per shot and has a unique green laser instead of the normal red laser, different from a standard laser rifle. It doesn't have iron sights view and cannot be modded using laser rifle mods, though it can be repaired with normal laser rifles. The AER14 is also visually longer than the standard AER9 laser rifle.
Vault 22, in the common area. Go to the fifth floor, pest control, and enter the stairway door to the common area which is to the right upon exiting the elevator; it has a lock with a difficulty that varies according to the player's level. The AER14 is lying on the ground next to a scorched skeleton. It is possible that a companion will pick it up. If the weapon is not present near the skeleton, check the inventory of all companions.
Beside the AER14 prototype are several energy cells, even though the gun doesn't use that type of ammunition.
There is a glass-like object on the rifle's stock if viewed in third-person. It only appears as glass when next to the sky, when near the ground it appears as it should - It looks as if it were plastic cover over 2 circuit boards and some wires.
There is a sticky note on the observable back of the weapon that says "Focus: 1064 nm, 532 nm (SHG), 8.18pm!!!" This refers to the wavelength of the laser light, 1064 nm (infra-red) being the fundamental wavelength of the laser and 532 nm (green) being the second harmonic. SHG stands for second harmonic generation, a frequency conversion process that uses a set of crystals that double the frequency of the light making an IR (1064 nm) light look green (532 nm, half 1064 nm). 8.18pm is slightly more ambiguous, this likely stands for picometers, and if so is likely the beam divergence which is often measured pm/m (picometers per meter, and more often used mRad) and is the rate at which the beam dissipates, expanding into a cone.
xbox360ps3 In third-person, the circuit boards in the stock may seem to disappear and reappear depending on the angle they are viewed from and the movement of the character holding the weapon. [verified]