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For an overview of 10mm pistol models in the Fallout series of games, see 10mm pistol.

Colonel Autumn's 10mm pistol is a unique 10mm pistol used by Colonel Autumn in Fallout 3.


This section is transcluded from 10mm pistol. To change it, please edit the transcluded page.

The large-framed, gas-operated N99 was selected as the standard issue conventional sidearm of the United States military, following the phaseout of the N80 in 2051. The long-barreled pistol remained in service for 26 years, until the Great War destroyed the United States. The pistol is designed to withstand the most extreme conditions, which was one of the requirements for a new service sidearm. It can also be repaired easily by anyone with even the most basic technical knowledge. This includes both clearing misfeeds[1] and restoring a unit to working condition after long exposure to elements without maintenance.[2]

These features also make it popular with wastelanders, who appreciate the ease of maintenance. It remains a common weapon, as even though many civilian units were ruined, they can easily be restored by anyone with some repair knowledge. Even damaged units can be used reliably, though they will offer subpar performance and jam frequently. The number of manufactured pistols means that parts are easy to come by, however.[2]


It does more damage and critical damage than regular 10mm pistols. It also has a higher value and item HP. It is obtained from Colonel Autumn's body at 100% condition.


Colonel Autumn's 10mm pistol can fire a total of about 577 rounds, the equivalent of 49 reloads, from full condition before breaking, roughly 23 more rounds than the normal 10mm. It fires around 20 magazines (or 245 rounds) more than the silenced version.


  • Silenced 10mm pistol - While not unique, the silenced 10mm pistol is a suppressed version of this weapon. It is weaker, but firing while sneaking will not give away one's position.
  • Sim version Gametitle-FO3 OA - A sim-only version of the weapon which has been re-skinned to appear newer and less worn. It also differs in health, with a whopping 999,150 hit points, essentially preventing the gun from ever degrading, This weapon is not normally accessible outside of the simulation.
Icon cut contentThe following is based on Fallout 3 cut content and has not been confirmed by canon sources.
  • 10mm alloy steel pistol - Another version of the weapon was cut from the Operation Anchorage add-on, it differs from the standard 10mm pistol in appearance only, using the same new skin as the sim-only version.
Icon cut contentEnd of information based on Fallout 3 cut content.
  • Sonora Cruz' 10mm pistol - a unique pistol carried by Sonora Cruz. It deals 100 damage, but Sonora's confidence is marked as "cowardly," so she flees from enemies and never uses her pistol.


Icon melee- Weapon name (melee or unarmed)Icon sequence- Attacks in V.A.T.S.
Icon gun- Weapon name (gun, energy or explosive)Icon action- Action point cost
Icon damage- Damage per attack (damage per projectile)Icon dap- Damage per action point
Icon dps- Damage per secondIcon spread- Weapon spread
Icon explosion- Area of effect damageAssault carbine extended magazines- Magazine capacity (shots per reload)
Icon effect- Effect damage & durationIcon repair- Durability (number of attacks before breaking)
Icon bonus effect- Bonus effectsIcon weight- Weight
Icon attack- Attacks per secondIcon merchant- Value in caps
Icon chance- Critical chance % multiplierIcon ratio- Value to weight ratio
Icon critical damage- Critical damageIcon ability- Skill required
Icon crit effect- Critical effect damage & durationIcon fist- Strength required
Icon plus- With all mods attached
Icon gunIcon damageIcon dpsIcon attackIcon chanceIcon critical damageIcon actionIcon dapIcon spreadAssault carbine extended magazinesIcon repairIcon weightIcon merchantIcon ratio
10mm pistol 9
Colonel Autumn's 10mm pistol 13
Silenced 10mm pistol 8


This weapon is carried by Augustus Autumn during the main story. During The Waters of Life quest after Colonel Autumn supposedly "dies," his belongings can be taken as long as he falls near the door.

One must face directly towards the body with the cursor directly on the body in the first-person view. Once this is done, hold down the button that changes the perspective and it should be possible to rotate the camera. Rotate it 180 degrees and you should see a "Search Colonel Autumn" message. One can also search James and possibly everyone in the room if they fall close enough to the wall. If it is not taken then, it will not spawn on him during the final fight during Take it Back!, being replaced by Colonel Autumn's laser pistol, or Colonel Autumn's laser pistol (Broken Steel), if you have Broken Steel installed.




  1. The Lone Wanderer: "Your gun is jammed? Can I take a look at it?"
    Pek: "Sure, I guess. Can you fix it?"
    The Lone Wanderer: "Sure can. Here, just pull this back to clear the chamber."
    Pek: "Wow... that's... that's easy. Now at least I can shoot back at those mutant bastards. Are you ready?"
  2. 2.0 2.1 Citadel terminal entries; weapon information research database terminal, N99 10mm Pistol
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