|關於an overview of machine gun models in various games，參見Machine gun。|
轻机枪具有高射速、大弹容、高杀伤力以及装填速度快的特性，精度则较为适中unless aimed down sights。不过，它挺沉的，其重量高达十五磅之高，The weapon additionally has a Strength requirement of 8 and a Guns requirement of 100, making it difficult to wield。在一个能够充分发挥其火力的射手手中，一把轻机枪可以轻而易举地清空大群的敌人，换用穿甲弹的时候那些身着厚重防弹衣的敌人也难逃一死。
The light machine gun can fire a total of about 3995 standard rounds, the equivalent of 45 reloads, or 20 reloads when modified with expanded drums, from full condition before breaking. Template:Durability table
- Light MG expanded drums - increases ammunition capacity by 110.
- Bozar - a powerful automatic 5.56mm sniper rifle added to the game by the add-on Gun Runners' Arsenal.
- A light machine gun in good condition can be found near the back of Quarry Junction in the Matriarch's Den, along with several deathclaw eggs, some 5.56mm ammo and a mini nuke.
- From level 16 onwards it can be purchased from the Vendortron at the Gun Runners kiosk.
- Can be purchased from Knight Torres at Hidden Valley, if Elder McNamara allows you to buy from their armory.
- NCR heavy troopers may carry them.
- Super mutant masters and nightkin masters occasionally carry them.
- One of the respawning Super mutants at an encampment north of Ranger station Bravo and west of the Devil's Throat sometimes carries one.
- Marked men marauders may carry them. -
- The light machine gun and its unique version the Bozar are the only fully-automatic 5.56mm firearms in the entire game.
- In Hardcore mode with the expanded drum modification, a magazine at full capacity weighs a hefty 5.2 pounds. With the Pack Rat perk this is halved to a still considerable 2.6 pounds.