Marksman Carbine

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

Gameplay
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 mil-dot reticle as the anti-materiel rifle and sniper rifle, but its barrel and magazine appear to have a stainless steel coating. It is highly accurate and deadly at long range with a Guns skill of 100. Additionally, it has a very low Action Point cost of 14, lower than most pistols as well as being the lowest out of any rifle in the game.

Durability
The marksman carbine can fire a total of about 1,995 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 stationed at Hoover Dam and NCR rangers at higher levels all throughout the game as well as some veteran legionaries and centurions of Caesar's Legion, though only during the Second Battle of Hoover Dam.
 * Carried by legionary assassins once the player character 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 finding a spot in which the player character can jump up onto the pipe.
 * In the waste disposal station, near a skeleton at the end of a tunnel.
 * Carried by Marked Men if the player character reaches high levels. If the player character level is 40 or above, they will use armor-piercing ammo against the Courier.

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