diff --git a/Content.Server/_FTL/TriggerOnEnterGrid/TriggerOnEnterGridComponent.cs b/Content.Server/_FTL/TriggerOnEnterGrid/TriggerOnEnterGridComponent.cs
new file mode 100644
index 0000000000..4fe4f36914
--- /dev/null
+++ b/Content.Server/_FTL/TriggerOnEnterGrid/TriggerOnEnterGridComponent.cs
@@ -0,0 +1,7 @@
+namespace Content.Server._FTL.TriggerOnEnterGrid;
+
+[RegisterComponent]
+public sealed partial class TriggerOnEnterGridComponent : Component
+{
+    public bool ReadyToTrigger = false;
+}
diff --git a/Content.Server/_FTL/TriggerOnEnterGrid/TriggerOnEnterGridSystem.cs b/Content.Server/_FTL/TriggerOnEnterGrid/TriggerOnEnterGridSystem.cs
new file mode 100644
index 0000000000..d7b67bf475
--- /dev/null
+++ b/Content.Server/_FTL/TriggerOnEnterGrid/TriggerOnEnterGridSystem.cs
@@ -0,0 +1,35 @@
+using Content.Server.Explosion.EntitySystems;
+
+namespace Content.Server._FTL.TriggerOnEnterGrid;
+
+/// <summary>
+/// This handles...
+/// </summary>
+public sealed class TriggerOnEnterGridSystem : EntitySystem
+{
+    public override void Update(float frameTime)
+    {
+        base.Update(frameTime);
+
+        var query = EntityQueryEnumerator<TriggerOnEnterGridComponent, TransformComponent>();
+        while (query.MoveNext(out var entity, out var component, out var xform))
+        {
+            switch (component.ReadyToTrigger)
+            {
+                case true when xform.GridUid.HasValue:
+                    Trigger(entity);
+                    break;
+                case false when !xform.GridUid.HasValue:
+                    component.ReadyToTrigger = true;
+                    break;
+            }
+        }
+    }
+
+    public bool Trigger(EntityUid trigger, EntityUid? user = null)
+    {
+        var triggerEvent = new TriggerEvent(trigger, user);
+        EntityManager.EventBus.RaiseLocalEvent(trigger, triggerEvent, true);
+        return triggerEvent.Handled;
+    }
+}
diff --git a/Resources/Locale/en-US/_ftl/crates.ftl b/Resources/Locale/en-US/_ftl/crates.ftl
index 0768fd24d3..e6b995ba26 100644
--- a/Resources/Locale/en-US/_ftl/crates.ftl
+++ b/Resources/Locale/en-US/_ftl/crates.ftl
@@ -37,6 +37,15 @@ ent-120mmAmmoAP = { ent-Crate120mmAmmoAP }
 ent-140mmAmmoAP = { ent-Crate140mmAmmoAP }
     .desc = { ent-Crate140mmAmmoAP.desc }
 
+ent-105mmAmmoPS = { ent-Crate105mmAmmoPS }
+    .desc = { ent-Crate105mmAmmoPS.desc }
+
+ent-120mmAmmoPS = { ent-Crate120mmAmmoPS }
+    .desc = { ent-Crate120mmAmmoPS.desc }
+
+ent-140mmAmmoPS = { ent-Crate140mmAmmoPS }
+    .desc = { ent-Crate140mmAmmoPS.desc }
+
 # crates
 # missiles
 ent-CrateT1Missiles = structural damage missiles
@@ -50,13 +59,13 @@ ent-CrateT3Missiles = total area destruction missiles
 
 # ammo
 ent-Crate20mmAmmo = 20mm mixed ammo crate
-    .desc = This crate contains 20 boxes of 20mm, both HE and AP.
+    .desc = This crate contains 30 boxes of 20mm of several types of ammunition.
 
 ent-Crate53mmAmmo = 53mm mixed ammo crate
-    .desc = This crate contains 10 boxes of 53mm, both HE and AP.
+    .desc = This crate contains 15 boxes of 53mm of several types of ammunition.
 
 ent-Crate80mmAmmo = 80mm mixed ammo crate
-    .desc = This crate contains 6 boxes of 80mm, both HE and AP.
+    .desc = This crate contains 9 boxes of 80mm of several types of ammunition.
 
 ent-Crate105mmAmmoHE = 105mm ammo crate (HE)
     .desc = This crate contains 30 shells of high-explosive 105mm.
@@ -75,3 +84,12 @@ ent-Crate120mmAmmoAP = 120mm ammo crate (AP)
 
 ent-Crate140mmAmmoAP = 140mm ammo crate (AP)
     .desc = This crate contains 10 shells of armor-piercing 140mm.
+
+ent-Crate105mmAmmoPS = 105mm ammo crate (PF)
+    .desc = This crate contains 30 shells of proximity-fuse 105mm.
+
+ent-Crate120mmAmmoPS = 120mm ammo crate (PF)
+    .desc = This crate contains 20 shells of proximity-fuse 120mm.
+
+ent-Crate140mmAmmoPS = 140mm ammo crate (PF)
+    .desc = This crate contains 10 shells of proximity-fuse 140mm.
diff --git a/Resources/Prototypes/_FTL/Catalog/Cargo/cargo_security.yml b/Resources/Prototypes/_FTL/Catalog/Cargo/cargo_security.yml
index cb8802b898..6e81de7ae8 100644
--- a/Resources/Prototypes/_FTL/Catalog/Cargo/cargo_security.yml
+++ b/Resources/Prototypes/_FTL/Catalog/Cargo/cargo_security.yml
@@ -107,3 +107,33 @@
   cost: 30000
   category: Security
   group: market
+
+- type: cargoProduct
+  id: 105mmAmmoPF
+  icon:
+    sprite: _FTL/Structures/Weapons/silo.rsi
+    state: closed
+  product: Crate105mmAmmoPF
+  cost: 10000
+  category: Security
+  group: market
+
+- type: cargoProduct
+  id: 120mmAmmoPF
+  icon:
+    sprite: _FTL/Structures/Weapons/silo.rsi
+    state: closed
+  product: Crate120mmAmmoPF
+  cost: 10000
+  category: Security
+  group: market
+
+- type: cargoProduct
+  id: 140mmAmmoPF
+  icon:
+    sprite: _FTL/Structures/Weapons/silo.rsi
+    state: closed
+  product: Crate140mmAmmoPF
+  cost: 30000
+  category: Security
+  group: market
diff --git a/Resources/Prototypes/_FTL/Catalog/Fills/Crates/ammo.yml b/Resources/Prototypes/_FTL/Catalog/Fills/Crates/ammo.yml
index 2a55706892..6605a2511c 100644
--- a/Resources/Prototypes/_FTL/Catalog/Fills/Crates/ammo.yml
+++ b/Resources/Prototypes/_FTL/Catalog/Fills/Crates/ammo.yml
@@ -8,6 +8,8 @@
           amount: 10
         - id: MagazineBox20mmAP
           amount: 10
+        - id: MagazineBox20mmPF
+          amount: 10
 
 - type: entity
   id: Crate53mmAmmo
@@ -19,6 +21,8 @@
           amount: 5
         - id: MagazineBox53mmAP
           amount: 5
+        - id: MagazineBox53mmPF
+          amount: 5
 
 - type: entity
   id: Crate80mmAmmo
@@ -30,6 +34,8 @@
           amount: 3
         - id: MagazineBox80mmAP
           amount: 3
+        - id: MagazineBox80mmPF
+          amount: 3
 
 - type: entity
   id: Crate105mmAmmoHE
@@ -84,3 +90,30 @@
       contents:
         - id: Cartridge140mmAP
           amount: 10
+
+- type: entity
+  id: Crate105mmAmmoPF
+  parent: CrateGenericSteel
+  components:
+    - type: StorageFill
+      contents:
+        - id: Cartridge105mmPF
+          amount: 30
+
+- type: entity
+  id: Crate120mmAmmoPF
+  parent: CrateGenericSteel
+  components:
+    - type: StorageFill
+      contents:
+        - id: Cartridge120mmPF
+          amount: 20
+
+- type: entity
+  id: Crate140mmAmmoPF
+  parent: CrateGenericSteel
+  components:
+    - type: StorageFill
+      contents:
+        - id: Cartridge140mmPF
+          amount: 10
diff --git a/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Boxes/he.yml b/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Boxes/he.yml
index ac560aa127..b8f4b31695 100644
--- a/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Boxes/he.yml
+++ b/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Boxes/he.yml
@@ -1,6 +1,6 @@
 - type: entity
   id: MagazineBox20mm
-  name: ammo box (20mm)
+  name: ammo box (20mm high-explosive)
   parent: BaseMagazineBox
   components:
     - type: Tag
@@ -16,7 +16,7 @@
 
 - type: entity
   id: MagazineBox53mm
-  name: ammo box (53mm)
+  name: ammo box (53mm high-explosive)
   parent: BaseMagazineBox
   components:
     - type: Tag
@@ -32,7 +32,7 @@
 
 - type: entity
   id: MagazineBox80mm
-  name: ammo box (80mm)
+  name: ammo box (80mm high-explosive)
   parent: BaseMagazineBox
   components:
     - type: Tag
diff --git a/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Boxes/ps.yml b/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Boxes/ps.yml
new file mode 100644
index 0000000000..41414384a5
--- /dev/null
+++ b/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Boxes/ps.yml
@@ -0,0 +1,47 @@
+- type: entity
+  id: MagazineBox20mmPF
+  name: ammo box (20mm proximity fuse)
+  parent: BaseMagazineBox
+  components:
+    - type: Tag
+      tags:
+        - Magazine20mm
+    - type: BallisticAmmoProvider
+      mayTransfer: true
+      whitelist:
+        tags:
+          - Cartridge20mm
+      proto: Cartridge20mmPF
+      capacity: 500
+
+- type: entity
+  id: MagazineBox53mmPF
+  name: ammo box (53mm proximity fuse)
+  parent: BaseMagazineBox
+  components:
+    - type: Tag
+      tags:
+        - Magazine53mm
+    - type: BallisticAmmoProvider
+      mayTransfer: true
+      whitelist:
+        tags:
+          - Cartridge53mm
+      proto: Cartridge53mmPF
+      capacity: 500
+
+- type: entity
+  id: MagazineBox80mmPF
+  name: ammo box (80mm proximity fuse)
+  parent: BaseMagazineBox
+  components:
+    - type: Tag
+      tags:
+        - Magazine80mm
+    - type: BallisticAmmoProvider
+      mayTransfer: true
+      whitelist:
+        tags:
+          - Cartridge80mm
+      proto: Cartridge80mmPF
+      capacity: 250
diff --git a/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Cartridges/ps.yml b/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Cartridges/ps.yml
new file mode 100644
index 0000000000..7f66090883
--- /dev/null
+++ b/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Cartridges/ps.yml
@@ -0,0 +1,102 @@
+- type: entity
+  id: Cartridge20mmPF
+  name: cartridge (20mm proximity fuse)
+  parent: BaseCartridge
+  components:
+    - type: Tag
+      tags:
+        - Cartridge
+        - Cartridge20mm
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 20mm
+    - type: Appearance
+    - type: CartridgeAmmo
+      deleteOnSpawn: true
+      proto: Bullet20mmPF
+- type: entity
+  id: Cartridge53mmPF
+  name: cartridge (53mm proximity fuse)
+  parent: BaseCartridge
+  components:
+    - type: Tag
+      tags:
+        - Cartridge
+        - Cartridge53mm
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 53mm
+    - type: Appearance
+    - type: CartridgeAmmo
+      deleteOnSpawn: true
+      proto: Bullet53mmPF
+- type: entity
+  id: Cartridge80mmPF
+  name: cartridge (80mm proximity fuse)
+  parent: BaseCartridge
+  components:
+    - type: Tag
+      tags:
+        - Cartridge
+        - Cartridge80mm
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 53mm # we do a thing called "reusing sprites"
+    - type: Appearance
+    - type: CartridgeAmmo
+      deleteOnSpawn: true
+      proto: Bullet80mmPF
+- type: entity
+  id: Cartridge105mmPF
+  name: cartridge (105mm proximity fuse)
+  parent: BaseCartridge
+  components:
+    - type: Tag
+      tags:
+        - Cartridge
+        - Cartridge105mm
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 105mm
+    - type: Appearance
+    - type: CartridgeAmmo
+      deleteOnSpawn: true
+      proto: Bullet105mmPF
+- type: entity
+  id: Cartridge120mmPF
+  name: cartridge (120mm proximity fuse)
+  parent: BaseCartridge
+  components:
+    - type: Tag
+      tags:
+        - Cartridge
+        - Cartridge120mm
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 105mm # we do a thing called "reusing sprites"
+    - type: Appearance
+    - type: CartridgeAmmo
+      deleteOnSpawn: true
+      proto: Bullet120mmPF
+- type: entity
+  id: Cartridge140mmPF
+  name: cartridge (140mm proximity fuse)
+  parent: BaseCartridge
+  components:
+    - type: Tag
+      tags:
+        - Cartridge
+        - Cartridge140mm
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 140mm
+    - type: Appearance
+    - type: CartridgeAmmo
+      deleteOnSpawn: true
+      proto: Bullet140mmPF
diff --git a/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Cartridges/explosive.yml b/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/explosive.yml
similarity index 100%
rename from Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/Cartridges/explosive.yml
rename to Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Ammunition/explosive.yml
diff --git a/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Projectiles/ps.yml b/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Projectiles/ps.yml
new file mode 100644
index 0000000000..b169701b23
--- /dev/null
+++ b/Resources/Prototypes/_FTL/Entities/Objects/Weapons/Guns/Projectiles/ps.yml
@@ -0,0 +1,113 @@
+- type: entity
+  id: Bullet20mmPF
+  name: 20mm
+  parent: BaseBulletTrigger
+  noSpawn: true
+  components:
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 20mm
+    - type: ExplodeOnTrigger
+    - type: Explosive
+      explosionType: Default
+      totalIntensity: 50.0
+      intensitySlope: 8
+      maxIntensity: 100
+      maxTileBreak: 1
+    - type: TriggerOnEnterGrid
+
+- type: entity
+  id: Bullet53mmPF
+  name: 53mm
+  parent: BaseBulletTrigger
+  noSpawn: true
+  components:
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 53mm
+    - type: ExplodeOnTrigger
+    - type: Explosive
+      explosionType: Default
+      totalIntensity: 50.0
+      intensitySlope: 4
+      maxIntensity: 100
+      maxTileBreak: 1
+    - type: TriggerOnEnterGrid
+
+- type: entity
+  id: Bullet80mmPF
+  name: 80mm
+  parent: BaseBulletTrigger
+  noSpawn: true
+  components:
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 53mm
+    - type: ExplodeOnTrigger
+    - type: Explosive
+      explosionType: Default
+      totalIntensity: 250.0
+      intensitySlope: 17
+      maxIntensity: 250
+      maxTileBreak: 1
+    - type: TriggerOnEnterGrid
+
+- type: entity
+  id: Bullet105mmPF
+  name: 105mm
+  parent: BaseBulletTrigger
+  noSpawn: true
+  components:
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 105mm
+    - type: ExplodeOnTrigger
+    - type: Explosive
+      explosionType: Default
+      totalIntensity: 500.0
+      intensitySlope: 15
+      maxIntensity: 100
+      maxTileBreak: 1
+    - type: TriggerOnEnterGrid
+
+- type: entity
+  id: Bullet120mmPF
+  name: 120mm
+  parent: BaseBulletTrigger
+  noSpawn: true
+  components:
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 105mm
+    - type: ExplodeOnTrigger
+    - type: Explosive
+      explosionType: Default
+      totalIntensity: 600.0
+      intensitySlope: 15
+      maxIntensity: 250
+      maxTileBreak: 1
+    - type: TriggerOnEnterGrid
+
+- type: entity
+  id: Bullet140mmPF
+  name: 140mm
+  parent: BaseBulletTrigger
+  noSpawn: true
+  components:
+    - type: Sprite
+      sprite: _FTL/Objects/Weapons/Guns/Ammunition/Explosives/explosives.rsi
+      layers:
+        - state: 140mm
+    - type: ExplodeOnTrigger
+    - type: Explosive
+      explosionType: Default
+      totalIntensity: 700.0
+      intensitySlope: 15
+      maxIntensity: 500
+      maxTileBreak: 1
+    - type: TriggerOnEnterGrid