diff --git a/Resources/Prototypes/Entities/Objects/Specific/Mech/Weapons/Gun/combat.yml b/Resources/Prototypes/Entities/Objects/Specific/Mech/Weapons/Gun/combat.yml
index 0ebfdc56909..071c2403dc1 100644
--- a/Resources/Prototypes/Entities/Objects/Specific/Mech/Weapons/Gun/combat.yml
+++ b/Resources/Prototypes/Entities/Objects/Specific/Mech/Weapons/Gun/combat.yml
@@ -44,6 +44,29 @@
   - type: Appearance
   - type: AmmoCounter
 
+- type: entity
+  id: WeaponMechCombatHeavyRifle
+  name: Mounted Heavy Rifle Gun
+  description: A gun for battlemechs, firing Antimaterial bullet.
+  suffix: Mech Weapon, Gun, Combat, Anti
+  parent: [ BaseMechWeaponRange, CombatMechEquipment ]
+  components:
+  - type: Sprite
+    sprite: Objects/Specific/Mech/mecha_equipment.rsi
+    state: mecha_antimatrifle
+  - type: Gun
+    fireRate: 2
+    selectedMode: FullAuto
+    availableModes:
+      - FullAuto
+    soundGunshot:
+      path: /Audio/_Sunrise/Weapons/Guns/Snipers/Bauer127/bauer127_shot.ogg
+  - type: ProjectileBatteryAmmoProvider
+    proto: CartridgeAntiMateriel
+    fireCost: 45
+  - type: Appearance
+  - type: AmmoCounter
+
 - type: entity
   id: WeaponMechCombatSolarisLaser
   name: CH-LC "Solaris" laser cannon
diff --git a/Resources/Prototypes/_Sunrise/Entities/Objects/Specific/Mech/Weapons/Gun/combat.yml b/Resources/Prototypes/_Sunrise/Entities/Objects/Specific/Mech/Weapons/Gun/combat.yml
index 88cfbb011a4..77dce0315fe 100644
--- a/Resources/Prototypes/_Sunrise/Entities/Objects/Specific/Mech/Weapons/Gun/combat.yml
+++ b/Resources/Prototypes/_Sunrise/Entities/Objects/Specific/Mech/Weapons/Gun/combat.yml
@@ -50,7 +50,7 @@
 - type: entity
   id: WeaponMechCombatPirateCannon
   name: Mounted PirateCannon
-  description: An ancient heavy machine gun given new life as a mech-mounted gun
+  description: An ancient heavy gun given new life as a mech-mounted gun
   suffix: Mech Weapon, Gun, Combat, Pirate
   parent: [ BaseMechWeaponRange, CombatMechEquipment ]
   components:
@@ -75,7 +75,7 @@
 - type: entity
   id: WeaponMechCombatPirateGrapeshot
   name: Mounted PirateGrapeshot
-  description: An ancient heavy machine gun given new life as a mech-mounted gun
+  description: An ancient heavy gun given new life as a mech-mounted gun
   suffix: Mech Weapon, Gun, Combat, Pirate
   parent: [ BaseMechWeaponRange, CombatMechEquipment ]
   components:
@@ -100,7 +100,7 @@
 - type: entity
   id: WeaponMechCombatPirateGlassshot
   name: Mounted PirateGlassshot
-  description: An ancient heavy machine gun given new life as a mech-mounted gun
+  description: An ancient heavy gun given new life as a mech-mounted gun
   suffix: Mech Weapon, Gun, Combat, Pirate
   parent: [ BaseMechWeaponRange, CombatMechEquipment ]
   components:
@@ -150,3 +150,26 @@
     fireCost: 6
   - type: Appearance
   - type: AmmoCounter
+
+- type: entity
+  id: WeaponMechCombatDuster
+  name: Mounted EXP-220 Duster
+  description: An  heavy Auto Cannon as a mech-mounted gun with Frag ammo
+  suffix: Mech Weapon, Gun, Combat
+  parent: [ BaseMechWeaponRange, CombatMechEquipment ]
+  components:
+  - type: Sprite
+    sprite: Objects/Specific/Mech/mecha_equipment.rsi
+    state: mecha_autocannon
+  - type: Gun
+    fireRate: 0.35
+    selectedMode: FullAuto
+    availableModes:
+      - FullAuto
+    soundGunshot:
+      path: /Audio/Weapons/Guns/Gunshots/ship_duster.ogg
+  - type: ProjectileBatteryAmmoProvider
+    proto: GrenadeFrag
+    fireCost: 140
+  - type: Appearance
+  - type: AmmoCounter
diff --git a/Resources/Textures/Objects/Specific/Mech/mecha_equipment.rsi/mecha_antimatrifle.png b/Resources/Textures/Objects/Specific/Mech/mecha_equipment.rsi/mecha_antimatrifle.png
new file mode 100644
index 00000000000..3495a1e2439
Binary files /dev/null and b/Resources/Textures/Objects/Specific/Mech/mecha_equipment.rsi/mecha_antimatrifle.png differ
diff --git a/Resources/Textures/Objects/Specific/Mech/mecha_equipment.rsi/mecha_autocannon.png b/Resources/Textures/Objects/Specific/Mech/mecha_equipment.rsi/mecha_autocannon.png
new file mode 100644
index 00000000000..c371a069081
Binary files /dev/null and b/Resources/Textures/Objects/Specific/Mech/mecha_equipment.rsi/mecha_autocannon.png differ
diff --git a/Resources/Textures/Objects/Specific/Mech/mecha_equipment.rsi/meta.json b/Resources/Textures/Objects/Specific/Mech/mecha_equipment.rsi/meta.json
index 404ed5db463..3e29d643ec4 100644
--- a/Resources/Textures/Objects/Specific/Mech/mecha_equipment.rsi/meta.json
+++ b/Resources/Textures/Objects/Specific/Mech/mecha_equipment.rsi/meta.json
@@ -223,6 +223,25 @@
         ]
       ]
     },
+    {
+      "name": "mecha_antimatrifle",
+      "delays": [
+        [
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1
+        ]
+      ]
+    },
     {
       "name": "mecha_solaris",
       "delays": [
@@ -249,6 +268,32 @@
         ]
       ]
     },
+    {
+      "name": "mecha_autocannon",
+      "delays": [
+        [
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1
+        ]
+      ]
+    },
     {
       "name": "mecha_firedart"
     },
diff --git a/Resources/Textures/_Sunrise/Objects/Weapons/Guns/Projectiles/hitscan_tracer.rsi/grenade.png b/Resources/Textures/_Sunrise/Objects/Weapons/Guns/Projectiles/hitscan_tracer.rsi/grenade.png
new file mode 100644
index 00000000000..56a8a191fc3
Binary files /dev/null and b/Resources/Textures/_Sunrise/Objects/Weapons/Guns/Projectiles/hitscan_tracer.rsi/grenade.png differ
diff --git a/Resources/Textures/_Sunrise/Objects/Weapons/Guns/Projectiles/hitscan_tracer.rsi/meta.json b/Resources/Textures/_Sunrise/Objects/Weapons/Guns/Projectiles/hitscan_tracer.rsi/meta.json
index 25cd862a24e..dd1824c4272 100644
--- a/Resources/Textures/_Sunrise/Objects/Weapons/Guns/Projectiles/hitscan_tracer.rsi/meta.json
+++ b/Resources/Textures/_Sunrise/Objects/Weapons/Guns/Projectiles/hitscan_tracer.rsi/meta.json
@@ -22,6 +22,9 @@
     {
       "name": "piercing"
     },
+    {
+      "name": "grenade"
+    },
     {
       "name": "rubber"
     },