Marksman Carbine

The marksman carbine is a weapon in Fallout: New Vegas.

Characteristics
The marksman carbine is a semi-automatic, medium-power rifle with a 20-round magazine. Mounted with an enhanced-zoom scope that shares the same reticle as the anti-materiel rifle and sniper rifle, it is highly accurate and deadly at long range with a Guns skill of 100. With its good damage, an extremely high rate of fire and a good-sized magazine, it can deal a large amount of damage per second, making it versatile and useful against most enemies.

Durability
The marksman carbine can fire a total of about 1995 standard rounds, the equivalent of 100 reloads, from full condition before breaking.

Modification

 * Marksman carbine extended magazine - cut from the game.

Variant

 * All-American - a unique, camouflaged version of the marksman carbine found in the armory of Vault 34.

Locations

 * Nellis array, Nellis Air Force Base - in the entrance area on the floor next to the dead Boomer.
 * Vault 34 - located in the armory.
 * Gun Runners - can be purchased from Vendortron after level 16.
 * Hidden Valley bunker - can be purchased from Torres, may require the Courier to complete some BoS quests to allow higher tier of equipment to be available to purchase.
 * Carried by many NCR troopers, NCR rangers and Caesar's Legion soldiers at higher levels, mostly during the Second Battle of Hoover Dam and in the dam interior or lower levels.
 * Carried by Legionary assassins once the player reaches a high-enough level.
 * One of them can be found near Securitron de-construction plant on the pipe to the east from the main entrance. Just follow the pipe until you can find a spot which you can jump up onto the pipe.
 * In the waste disposal station, near a skeleton at the end of a tunnelway.
 * Carried by Marked Men if the player reach high levels, if the player level is 40 or above, they will use Armor Piercing ammo against the Courier.
 * The masked NCR troopers in the Hoover Dam Visitor Center may carry them.

Behind the scenes
According to J.E. Sawyer, the marksman carbine is loosely based around "paratrooper-oriented marksman rifles" and are present due to New Vegas' proximity to Nellis AFB.