This weapon is identical to the LAER in appearance, but differs in ammunition capacity by having five fewer shots per magazine and a slightly increased rate of fire. This gives it a higher damage-per-second (DPS), but also makes it much less durable. Given the original variant's fragility, its condition is a major concern, especially when using over-charged, optimized, or max charge ammunition.
Elijah's advanced LAER can fire a total of about 245 times using standard cells, the equivalent of 17 reloads, or 13 reloads when modified with the auxiliary recharger clip, from full condition before breaking.
As the name suggests, the LAER is modified by Elijah, during his stay in the Big MT.
The weapon's condition only has 50 HP, so it degrades incredibly fast. Using bulk ammunition can prolong this weapon's life, at the cost of reduced damage.
This weapon can prove to be effective if companions use it, as the weapon will never decay (unless if the weapon is damaged and/or disarmed by any enemy). The companions Arcade Gannon and Veronica Santangelo will use the weapon effectively, as they both have the Energy Weapons skill tagged.
This weapon is one of the rarest non-unique weapons in the game, due to it having a maximum of two being obtainable.
Fully upgraded, this weapon makes use of special microfusion cells more effective, since it refunds 25 % of the cells used, and through high per hit damage effectively makes better use of optimal charge microfusion cells than any other energy weapon.
Only two of these specific advanced LAER's can be found in the vicinity of Big MT.