10mm submachine gun (Fallout: New Vegas)

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For an overview of submachine gun models in the Fallout series of games, see submachine gun.

The 10mm submachine gun is a weapon in Fallout: New Vegas


The 10mm submachine gun (SMG) is a one handed automatic weapon. Although the in-game description for the 10mm SMG lists a high damage-per-second (DPS), it shares the common weakness of most shotguns and automatic weapons in Fallout: New Vegas in that much of its theoretical power is negated by the damage threshold system. In addition to losing much of its damage, the high spread of this weapon requires the player character to be at close ranges for all of the rounds fired to impact on the target.

Another downfall of the SMG is its ammunition consumption, as this SMG can eat through 10mm rounds at alarming speeds: emptying its magazine in 3 1/3 seconds. However, with full automatic fire and a 30-round magazine, the SMG is a decent side arm for close quarters combat.


The 10mm submachine gun can fire a total of about 2495 standard rounds, the equivalent of 84 reloads, or 63 reloads when modified with extended magazines, from full condition before breaking.

Ammunition typeUnmodifiedW/ Extended mags
Standard, HP & JHP249584249563



  • Sleepytyme Gun Runners' ArsenalGametitle-FNV GRA - added in the add-on Gun Runners' Arsenal. It has a suppressor/compensator along with internal modifications that boost the damage and slightly elevate the rate of fire. It also comes with a darker finish and a larger magazine.


Weapon name (current weapon is highlighted)Icon gunDamage per attack (damage per projectile)Icon damageDamage per secondIcon dpsAttacks per secondIcon attackCritical Chance % multiplierIcon chanceCritical damageIcon critical damageAttacks in V.A.T.S.Icon sequenceAction Point costIcon actionDamage per action pointIcon dapWeapon spreadIcon spreadMagazine capacity (shots per reload)Assault carbine extended magazinesDurability (number of attacks before breaking)Icon repairWeightIcon weightValue in capsIcon merchantValue to weight ratioIcon ratioSkill requiredIcon abilityStrength requiredIcon fist
10mm submachine gun 19
10mm submachine gun With all weapon mods attachedIcon plus 19
Sleepytyme fnvgraGametitle-FNV GRA22



  • Along with the 9mm submachine gun, the 10mm SMG will not slow you down when equipped.
  • Aiming can be difficult, due to the extremely thin circular iron sight and the distance between the rear sight of the gun.


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