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12.7mm submachine gun

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For an overview of submachine gun models throughout the Fallout series, see submachine gun.
12.7mm submachine gun
12.7mm SMG.pngDummyImage.png
12.7mm SMG with silencer.png
12.7mm SMG icon.png
Regular and fully modified
SkillGuns 100
Strength Req.6
Attack statistics
36 (42.8)
324 (539.8)
DPS (reload)
174.5 (284.1)
Crit Dmg
Crit % Mult
9 (12.6)AP24
Ammo & reloading
Ammo Type12.7mm round
Ammo Cap.21
Reload Time
2 (1.5)
Item HP500
12.7mm submachine gun
Two-handed automatic guns
Editor ID?
Base ID001429d1
Perk Effects
Perks (dam.)
Lord Death
Perks (Att.)
Fast Shot
Perks (Rel.)
Rapid Reload

The 12.7mm submachine gun is a weapon in Fallout: New Vegas.


12.7mm SMG expanded

An extremely powerful close quarters combat weapon, the 12.7mm submachine gun is as unique in its looks as it is in function. Loading rounds from a top mounted magazine located horizontally, parallel to the weapon's barrel, it utilizes a delayed blowback system, with an inertia block located in the center part of the weapon that redirects recoil downwards via a weighted block. The entire weapon is designed to lie in line with the operator's hand and shoulder, to reduce muzzle climb.[1]

It is a rare weapon early on in the game, but becomes more common on higher levels. It is the top tier submachine gun, with an excellent DPS and good weapons spread. It can also be suppressed, making it the only submachine gun other than the silenced .22 SMG that can be used by Sneak-based characters. It also has a small magazine capacity, limiting its utility somewhat.

It is also classified as a two-handed weapon and will slow down the player when drawn. Furthermore, since it uses the assault rifle pistol grip animation, the Jury Rigging perk will classify it alongside the service rifle and light machine gun for repairs, rather than other submachine guns. However, it is as durable as the standard 10mm submachine gun, capable of firing 2495 standard rounds (~119 magazines) before breaking down.




  • Bloodborne cave: Beyond the Very Hard lock gate, in a box alongside 8000 caps. The key is next to the campfire.
Non-player characters


  • Prior to patch, the 12.7mm SMG cost 20 AP to use in VATS, had a minimum spread of 4 degrees, an item HP of 250, a rate of fire of 8 shots per second, and carried fifteen rounds in the magazine.

Behind the scenes

  • The 12.7mm SMG is almost entirely fictional, though a couple of elements were loosely inspired by the FN P90 and KRISS Vector.[2]


  • PCIcon pc.png PlayStation 3Icon ps3.png Xbox 360Icon xbox360.png While both 12.7mm weapons have an unique silenced sound effect provided, WPN127mmModFire, they use varmint rifle sounds.



  1. Weapon appearance is loosely based on the KRISS Vector, which operates in this way.
  2. J.E. Sawyer