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M870 Shotgun

15.0k

12x70mm · 70 RPM · Ergo 44 · 4.32 kg · est. 233 DPS w/ 12x70mm Flechette Buckshot

Stats
TypeShotgun
Cost15.0k
Weight4.32 kg
Fire rate70 RPM
Firing modePump-Action
PowerHigh
Ergonomics44
V-recoil ctrl14
H-recoil ctrl15
Weapon stab.43
Hipfire stab.50
Accuracy9
Eff. range12m
Muzzle vel.403 m/s
Caliber12x70mm
Recommended ammo
  • #1 · T3 pen — 200 dmg
    12x70mm Flechette Buckshot
    380
  • #2 · T3 pen — 163 dmg
    12x70mm Armor-Piercing Slug
    2.0k
  • #3 · T2 pen — 201 dmg
    12x70mm GT Slug
    939
Pen calculator — M870 Shotgun
Range
T1
1
92% pen
177.8 dpsh
T2
1
82% pen
162.7 dpsh
T3
1
63% pen
128.2 dpsh
T4
1
34% pen
79.6 dpsh
T5
1
10% pen
35.6 dpsh
T6
2
2% pen
22.4 dpsh
STK shown · ranges and target affect pen + damage

Full ammo × armor matrix on /penetration.

TTK simulator

Pick ammo + target armor + range — get shots-to-kill and TTK seconds for every body part. Standalone tool at /ttk.

Ammo
163 dmg·pen 3·2.0k
Target
Chest plateT4
HelmetT3
Range≤25m
thorax TTK0.86sok
shots2
pen35%
eff dmg69.8
Body part breakdown
partHPdmg/shotshotsTTKpen
head35116.210.0s65%
thorax8569.820.86s35%
stomach70163.010.0s100%
arm60163.010.0s100%
leg65163.010.0s100%
M870 ShotgunHeuristics from abi-helper.com pen ladder + ABI ballistics. ABI HP pools approximate.
Custom build (mod picker)

Pick attachments per slot to see live ergo / recoil / weight / cost deltas. Generate a BUILD2 share code at the bottom — paste it in /import or the Discord bot to load the exact mod loadout.

Ergo
44
V-Rec
14
H-Rec
15
Weight
4.32kg
Mods
0
+ Cost
0
Stock
Mag
Optic
Barrel
recoil pattern · 30-round burst≈ 25.7s

Heuristic from v-recoil 14 / h-recoil 15. Bottom = first shot, top = 30th. Tighter cluster ≈ easier mag dump; wide spread ≈ tap-fire territory.

damage falloff · 12x70mm Flechette Buckshotmuzzle 403 m/s
80120160200eff 12m0m50m100m150m200mrange

Approximate falloff: flat to 12m → linear decay 1.0–1.5× eff range → ~42% damage floor beyond. Heuristic only; real per-pellet pen and armor curves come from /penetration.

Weapon code

Share this exact weapon (with 12x70mm Flechette Buckshot) anywhere — Discord, Reddit, an old-school text doc. Anyone can paste it on the import page or in the Discord bot to load it instantly.

GUN1.eyJ2IjoxLCJnIjoibTg3MC1zaG90Z3VuIiwiYW0iOiIxMng3MG1tLWZsZWNoZXR0ZS1idWNrc2hvdCJ9
build a kit →

Stats sourced from the Arena Breakout Infinite Wiki (CC-BY-SA 3.0). Ammo recommendations are heuristic until curators verify the meta picks.