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Terminal.png This article, M121 Bounding Anti-Personnel Mine, was written by Ajax 013. Please do not edit this fiction without the writer's permission.
M121 Bounding Anti-Personnel Mine
Production information





anti-personnel mine

Technical specifications
Damage Per Hit

typically fatal


Necros War




"Fucking rabbits. Everywhere we go, some stupid faggot has introduced them and no matter how hostile the alien critters, bunnies survive. Stupid lil' bastards like to snuggle up where the earth is warmest, usually on top of a landmine where it has warmed the soil above it. They won't set off a tank mine, not nearly heavy enough, but they will set off the APERS. Then its bunny heaven. Means at first glance, you can tell where anti tank mines are cos of the bunny droppings."
―Lance Corporal Lucy Shepard

The M121 Bounding Anti-Personnel Mine is a UNSC anti personnel mine.


The M121 APERS is a mine designed to be buried, though can be operated free standing, and buried either by infantry, artillery, orbital or aerial disruption. The Mine lies under the ground, maintaining a passive motion detector, awaiting enemy movement. Once the sensor is triggered, the mine quickly generates a SONAR pulse, analyses the result and cross references it with known targets. After this it delivers a brief IFF scan, to double confirm it is not a friendly combatant by the IFF signature. Once a hostile combatant is confirmed it bounds up, propelled by propelling charge from its 'cup', the hardened polymer basket in which it rests while simultaneously launching its side charge to send it into a controlled spin. Once the optical sensor has a confirmed lock, it launches a cone shaped explosion, sending out a hail of EXCALIBUR fragments that cut through most shielding types and body armour, usually killing even fully armoured Brute Minors in a single explosion. The mine also possess a rudimentary pressure sensitive proximity sensor, which after activated the mine conducts a IFF interrogation then if unsuccessful two seconds after pressure is released, it bounds and activates. The mine also posses anti-tampering systems to protect it from being disarmed by enemy EOD forces with ease, including a simple spring that activates when it's electromagnetic signal is disrupted. It can also be augmented with wide dispersal pressure panels and dummy mines.

Like all UNSC Mines it can be set to have a life span, after which it explodes and it can be deactivated and reactivated by coded signals. These signals are composed on near unbreakable codes, preventing the enemy from randomly bombarding the battlefield with codes to deactivate them. The Mine is invisible to conventional mine detectors and invisible to ARGUS sensors.

UNSC Remarks

"The Necros learned the trick with rabbits and our mines so we started sprinkling the APERS mines with rabbit shit before we activated them."

Individual and Crew Served Weaponry of the UNSCDF


M6L Personal Defence Weapon System | M57 Pistol | M98 Compact | M19 Modular Pistol

Submachine Guns

M20A Submachine Gun | M12 Special Operations Carbine | M8Z Submachine Gun

Assault Rifles, Carbines, and Battle Rifles

MA6A Individual Combat Weapon System | M2A Carbine | M81 Special Purpose Carbine | M55C Enhanced Battle Rifle

Designated Marksman Rifles

M396 Designated Marksman Rifle | M97 Special Purpose Rifle | M113 Special Purpose Rifle

Machine Guns

M397 Individual Automatic Rifle | M739C Squad Automatic Weapon | M122 Light Machine Gun | M247B2 General Purpose Machine Gun | M247H2 Heavy Machine Gun | AIE-486K1 Heavy Machine Gun | M343A3 Heavy Machine Gun | M780 Special Purpose Machine Gun

Sniper Rifles

M22 Scout Rifle System | M818D Enhanced Modular Sniper Rifle System | M1091 Sniper Rifle System | Sniper Rifle System 99G-S6 Anti-Materiel | M99CA1 Special Application Scoped Rifle | M133 Precision Anti-Materiel Energy Weapon System


M45F Close Assault Weapon System | M108A1 Close Assault Weapon System | M77 Extreme Close Quarters Combat System

Energy Weapons

Weapon/Anti-Vehicle Model 6B Grindell/Galilean Nonlinear Rifle | MX4 Light Support Weapon | M921 ARC

Non-Lethal Weapon

M2 Threat-Negation Device | MX9 Pulsed Energy Projectile System | M39 Long Range Tranquillizer Rifle

Missile and Rocket Launchers

M41B2 Medium Anti-Vehicle/Assault Weapon | M899 Light Anti Armour Weapon | M57 Light Multipurpose Assault Weapon | M1 Multiple Launch Rocket System | M25 Underslung Rocket Launcher

Grenade Launchers

M319N Individual Grenade Launcher | M23 Multiple Grenade Launcher | M363B RPD | M460C Automatic Grenade Launcher | M556 Counter Defilade Grenade Launcher | M24 Underslung Grenade Launcher | M26 Grenade Launcher Module


M71 Mortar | M78 Mortar | M81 Mortar


M117 Light-Weight Field Howitzer

Sentry Guns

M55 GUARD DOG Sentry Gun | M601 GARGOYLE Sentry Gun


M9 Dual Purpose/High Explosive Grenade | M2 Anti-Materiel Grenade | M70 Flash Bang Grenade | M43 Smoke Grenade

Anti-Personnel and Anti-Armour Mines

M320 Anti-Tank Mine | M341 Anti-Tank Mine | M362 Anti-Tank Mine | M121 Bounding Anti-Personnel Mine | M127 Anti-Personnel Mine

Explosive Devices

C-7 Foaming Explosive | C-13 Gertex | C-14 Plastic Explosive | C-15 Liquid Explosive | M303 Thermite Cord | M311 Detonation Cord | M382 Special Munition Attack Charge (Kinetic) | M390 Breaching Charge | M394 Clearance Charge | M404 Special Lightweight Attack Munition | M366 Demolition Charge | M376 Satchel Charge | M379 Explosive Pack