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Mastiff Shotgun
Mastiff SG.png
Powerful semi-auto shotgun
Type Shotgun
Fire modes Single
Ammo type Shotgun Shells.svg Shotgun Shells
Rate of fire 66 RPM
Projectile speed 16000 UPS
Base cost Materials500
Level 1 upgrade cost Materials150
Level 2 upgrade cost Materials250
Level 3 upgrade cost Materials300
Total cost Materials?
Head 14/pellet (1.25x)
112 (14×8) total
Body 11/pellet
88 (11×8) total
Body DPS 11-88
Magazine size 6
Tac reload time 1.03 sec/bullet
Full reload time +0.67 seconds
ADS speed penalty -10%
Recoil Negligible

The Mastiff Shotgun is a semi-automatic shotgun that utilizes Shotgun Shells.svg Shotgun Shells. It fires 8 pellets in the shape of a horizontal line, which decreases in width while aiming down the sights, reducing the spread and thus increasing accuracy.


The M1901 Mastiff Combat Shotgun was developed specifically for low-gravity close-quarters engagements. The kinetic energy produced when fired in low-gravity can severely unbalance its user with massive recoil, so the engineers at Lastimosa Armory incorporated a muzzle velocity dampening system which mitigates that energy and greatly reduces recoil.

Intended for low to zero gravity ship boarding and clearing operations, the Mastiff gained notoriety throughout The Frontier as a reliable and devastating combat shotgun. Shells can be fed through the under-mounted magazine or with the optional drum magazine upgrade. Troops from the IMC's 401st often refer to it as the "Mobile Claymore" as its high rate of fire proved to be devastating.[1]

Damage Profile[]

Target Damage [note 1] Shots to kill [note 2]
100 HP 150 HP 175 HP 200 HP 225 HP
Head 112 1 2 2 2 3
Helmet.svg Level 1 Helmet 104 1 2 2 2 3
Helmet.svg Level 2 Helmet 104 1 2 2 2 3
Helmet.svg Level 3/4 Helmet 96 2 2 2 3 3
Body 88 2 2 2 3 3
Leg 88 2 2 2 3 3
Fortified.svg Fortified Legends[note 3]
Target Damage [note 1] Shots to kill [note 2]
100 HP 150 HP 175 HP 200 HP 225 HP
Head 96 2 2 2 3 3
Helmet.svg Level 1 Helmet 88 2 2 2 3 3
Helmet.svg Level 2 Helmet 88 2 2 2 3 3
Helmet.svg Level 3/4 Helmet 88 2 2 2 3 3
Body 72 2 3 3 3 4
Leg 72 2 3 3 3 4

Special Note: The non rounded per pellet head shot damage numbers for Fortified, assuming Fortified reduces non rounded numbers, are (Helmet Lvl1 -> Lvl3/4) 11.22, 10.7525, and 10.51875.They ALL round to 11 damage/pellet equaling 88 damage total.

Note: Fortified head shot damages may vary +-8. This is due to uncertainty over whether Fortified reduces non rounded or rounded damage numbers. This difference is negligible on non pellet based weapons.

  1. Shotgun Damage is calculated per pellet.
    Example: The Mastiff's head shot damage is calculated by 11dmg/pellet x 1.25 = 13.75dmg/pellet which rounds to 14dmg/pellet giving you 112 damage total. Whereas if you multiply the Mastiff's total body damage of 88 by its head shot multiplier of 1.25 you get 110 damage which is not equal to it's in game head shot damage of 112.
  2. 2.0 2.1 Body Shield.svg Body Shields and Evo Shield.svg Evo Shields increase hitpoints.
  3. Fortified.svg Fortified decreases damage taken by 15%.


Main article: Attachments

Arenas Upgrades[]

Attachment 1st Upgrade 2nd Upgrade 3rd Upgrade
1x HCOG Classic.svg 1x HCOG “Classic”
1x Holo.svg 1x Holo
2x HCOG Bruiser.svg 2x HCOG “Bruiser”
1x-2x Variable Holo.svg 1x-2x Variable Holo
1x Digital Threat.svg 1x Digital Threat
Shotgun Bolt.svg Shotgun Bolt

Pros and Cons[]

  • High damage if all or almost all pellets connect.
  • Decent ammo and reload.
  • Has 0% leg damage reduction.
  • Aiming down the sights will reduce spread, thus increasing accuracy.
  • Aiming at the enemy's chest/shoulder area will deal more damage due to the Mastiff's horizontal pellet spread pattern.
  • Ability to reload bullets mid-fight, one at a time, without emptying the mag.
  • Animation between shots can obscure vision.
  • 1× headshot multiplier at 38+ meters.
  • Hip-fire will have increased spread, thus decreasing accuracy.
  • The Mastiff's damage is sometimes inconsistent, especially at a longer range. Recommend using this weapon's iron sights, as they are indicative of its spread pattern.
  • Slow reload speed when reloading a full magazine (less than 3 bullets per second)


There are a total of 55 weapon skins for the Mastiff Shotgun; 8 Legendary, 5 Epic, 27 Rare, and 16 Common.

  • Pixel Hunter - needs Warp Zone and Legend Tokens 6,500
  1. Included in the Fuse Launch Bundle.

  • Aftermarket Icon.svg Throwin Down - Apex Coins 500
  • PlayStation+ Pack Rune Awakening - May 2020
  • Fight Night Pepperminted - Apex Coins 500



  • The Mastiff is one of only two guns in the game to reload one bullet at a time, the other one being the 30-30 Repeater.
  • The Mastiff was named after Respawn's IT Manager, Roni Papouban's, dog.[1]


See also[]