Icon disambig
For an overview of submachine gun models in the Fallout series of games, see Submachine gun.
Yeah, it is nice. I don't even sleep without it under my pillow. My father made gun ammunition for a living. Taught me everything about how firearms work. So, I've spent my downtime tinkering with guns like my 10mm Ultra SMG here. It's like a hobby I guess.Sydney

Sydney's 10mm "Ultra" SMG is a unique small gun in Fallout 3.


Sydney's 10mm "Ultra" SMG does 2 extra points of damage per shot and holds 20 more rounds of ammunition when compared against the base 10mm SMG, which also allows it to do substantially more damage per second when reloading times are considered.


Sydney's 10mm "Ultra" SMG can fire a total of about 926 rounds, the equivalent of 19 reloads, from full condition before breaking.


  • 10mm SMG - The standard version found throughout the Fallout 3 game world.
  • Sim version Operation: Anchorage (add-on)Gametitle-FO3 OA - A sim-only version of the weapon which differs only in health, with a whopping 999,250 hit points, essentially preventing the gun from ever degrading. The weapon is not accessible outside of the simulation without the use of the Gary 23 exploit or console commands.
Icon cut contentThe following is based on Fallout 3 cut content and has not been confirmed by canon sources.
  • 10mm Alloy Steel Submachinegun - Another version of the weapon was cut from the Operation: Anchorage DLC. Called the 10mm Alloy Steel Submachinegun, it is otherwise identical to the standard 10mm SMG.
Icon cut contentEnd of information based on Fallout 3 cut content.


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 ratio
10mm submachine gun 7
Sydney's 10mm "Ultra" SMG 9


Sydney the relic hunter carries this weapon. It can be obtained by either killing her, letting her die during the quest Stealing Independence, or finishing this quest and afterwards giving her "A note from Little Moonbeam's father".


Sydney has two versions of this weapon. According to the GECK, she carries a non-playable version, and a playable version is spawned on her person when she is killed, as a "death item". As a companion, she will use up ammunition for any non-companion weapon, so the non-playable version exists to prevent this. Thus, if she dies and you take her weapon, you may notice that she appears to still be holding it in her hand.


  • xbox360Icon xbox360 ps3Icon ps3 pcIcon pc It can be obtained an infinite number of times from Sydney if you go through the necessary dialogue choices and then give her the note from her father. After you complete the quest by returning to Abraham Washington, select the "So, whatever happened to your father?" dialogue option, then give her the note and she will give you her Sydney's 10mm "Ultra" SMG and 50 10mm bullets. Continue talking to her and you will notice the previous question about what happened to her father is gone. Select "Since we're done now, why don't you tell me about yourself?", then "Nice gun, I've never seen one like that before", followed by "That's all for now, I guess", then repeat "So whatever happened to your father?" and finally "Sydney, I found a note from your father, he didn't abandon you." This can be repeated an infinite number of times. [verified]
  • xbox360Icon xbox360 ps3Icon ps3 Sydney's 10mm SMG will sometimes flip upside down when she has it hanging on her hip, or when she draws it to walk around the National Archives. This continues to happen even in the Game of the Year version of the game. [verified]