diff --git a/code/modules/projectiles/ammunition.dm b/code/modules/projectiles/ammunition.dm
index 4f27c593c7..3fc860a127 100644
--- a/code/modules/projectiles/ammunition.dm
+++ b/code/modules/projectiles/ammunition.dm
@@ -13,7 +13,7 @@
 	var/caliber = ""					//Which kind of guns it can be loaded into
 	var/projectile_type					//The bullet type to create when New() is called
 	var/obj/item/projectile/BB = null	//The loaded bullet - make it so that the projectiles are created only when needed?
-//	var/spent_icon = null
+	var/caseless = null					//Caseless ammo deletes its self once the projectile is fired.
 
 /obj/item/ammo_casing/New()
 	..()
@@ -47,9 +47,7 @@
 			BB.name = "[initial(BB.name)] (\"[label_text]\")"
 
 /obj/item/ammo_casing/update_icon()
-/*	if(spent_icon && !BB)
-		icon_state = spent_icon*/
-	if(!BB) // This is really just a much better way of doing this.
+	if(!BB)
 		icon_state = "[initial(icon_state)]-spent"
 
 /obj/item/ammo_casing/examine(mob/user)
diff --git a/code/modules/projectiles/ammunition/magazines.dm b/code/modules/projectiles/ammunition/magazines.dm
index cfd96ac2aa..20bba9545f 100644
--- a/code/modules/projectiles/ammunition/magazines.dm
+++ b/code/modules/projectiles/ammunition/magazines.dm
@@ -188,6 +188,21 @@
 	name = "speedloader (.45 AP)"
 	ammo_type = /obj/item/ammo_casing/a45/ap
 
+///////// 5mm Caseless /////////
+
+/obj/item/ammo_magazine/m5mmcaseless
+	name = "prototype rifle magazine (5mm caseless)"
+	ammo_type = /obj/item/ammo_casing/a5mmcaseless
+	icon_state = "caseless-mag"
+	caliber = "5mm caseless"
+	mag_type = MAGAZINE
+	max_ammo = 30
+	multiple_sprites = 1
+
+/obj/item/ammo_magazine/m5mmcaseless/stun
+	icon_state = "caseless-mag-alt"
+	ammo_type = /obj/item/ammo_casing/a5mmcaseless/stun
+
 ///////// 9mm /////////
 
 /obj/item/ammo_magazine/m9mm
diff --git a/code/modules/projectiles/ammunition/rounds.dm b/code/modules/projectiles/ammunition/rounds.dm
index e87c91409d..70b88b73f8 100644
--- a/code/modules/projectiles/ammunition/rounds.dm
+++ b/code/modules/projectiles/ammunition/rounds.dm
@@ -52,7 +52,7 @@
 	matter = list(DEFAULT_WALL_MATERIAL = 130, "uranium" = 100)
 
 /*
- * .50 Action Express
+ * .44
  */
 
 /obj/item/ammo_casing/a44
@@ -322,6 +322,22 @@
 	desc = "A 5.45mm hunting bullet casing."
 	projectile_type = /obj/item/projectile/bullet/rifle/a545/hunter
 
+/*
+ * 5mm Caseless
+ */
+
+/obj/item/ammo_casing/a5mmcaseless
+	desc = "A 5mm solid phoron caseless round."
+	caliber = "5mm caseless"
+	icon_state = "casing" // Placeholder. Should probably be purple.
+	projectile_type = /obj/item/projectile/bullet/pistol // Close enough to be comparable.
+	matter = list(DEFAULT_WALL_MATERIAL = 180)
+	caseless = 1
+
+/obj/item/ammo_casing/a5mmcaseless/stun
+	desc = "A 5mm solid phoron caseless stun round."
+	projectile_type = /obj/item/projectile/energy/electrode // Maybe nerf this considering there's 30 rounds in a mag.
+
 /*
  * Misc
  */
diff --git a/code/modules/projectiles/guns/projectile.dm b/code/modules/projectiles/guns/projectile.dm
index 6539ba7c4a..d0549bbf4c 100644
--- a/code/modules/projectiles/guns/projectile.dm
+++ b/code/modules/projectiles/guns/projectile.dm
@@ -10,7 +10,7 @@
 	w_class = ITEMSIZE_NORMAL
 	matter = list(DEFAULT_WALL_MATERIAL = 1000)
 	recoil = 1
-	projectile_type = /obj/item/projectile/bullet/pistol/strong	//Only used for Cham Guns
+	projectile_type = /obj/item/projectile/bullet/pistol/strong	//Only used for chameleon guns
 
 	var/caliber = ".357"		//determines which casings will fit
 	var/handle_casings = EJECT_CASINGS	//determines how spent casings should be handled
@@ -84,8 +84,12 @@
 
 	switch(handle_casings)
 		if(EJECT_CASINGS) //eject casing onto ground.
-			chambered.loc = get_turf(src)
-			playsound(src.loc, "casing", 50, 1)
+			if(chambered.caseless)
+				qdel(chambered)
+				return
+			else
+				chambered.loc = get_turf(src)
+				playsound(src.loc, "casing", 50, 1)
 		if(CYCLE_CASINGS) //cycle the casing back to the end.
 			if(ammo_magazine)
 				ammo_magazine.stored_ammo += chambered
diff --git a/code/modules/projectiles/guns/projectile/caseless.dm b/code/modules/projectiles/guns/projectile/caseless.dm
new file mode 100644
index 0000000000..8d5dd9a19c
--- /dev/null
+++ b/code/modules/projectiles/guns/projectile/caseless.dm
@@ -0,0 +1,21 @@
+/obj/item/weapon/gun/projectile/caseless/prototype
+	name = "prototype caseless rifle"
+	desc = "A rifle cooked up in NanoTrasen's R&D labs that operates with Kraut Space Magic™ clockwork internals. Uses solid phoron 5mm caseless rounds."
+	icon_state = "caseless"
+	item_state = "caseless"
+	w_class = ITEMSIZE_LARGE
+	caliber = "5mm caseless"
+	origin_tech = list(TECH_COMBAT = 2, TECH_MATERIAL = 3)
+	slot_flags = SLOT_BACK
+	load_method = MAGAZINE
+	magazine_type = null // R&D builds this. Starts unloaded.
+	allowed_magazines = list(/obj/item/ammo_magazine/m5mmcaseless)
+
+/obj/item/weapon/gun/projectile/caseless/prototype/update_icon()
+	if(ammo_magazine)
+		icon_state = initial(icon_state)
+	else
+		icon_state = "[initial(icon_state)]-empty"
+
+/obj/item/weapon/gun/projectile/caseless/prototype/loaded
+	magazine_type = /obj/item/ammo_magazine/m5mmcaseless
\ No newline at end of file
diff --git a/icons/mob/back.dmi b/icons/mob/back.dmi
index b3b9a852c9..129db87f03 100644
Binary files a/icons/mob/back.dmi and b/icons/mob/back.dmi differ
diff --git a/vorestation.dme b/vorestation.dme
index a4b53f2eb8..c0fc13f7af 100644
--- a/vorestation.dme
+++ b/vorestation.dme
@@ -2553,6 +2553,7 @@
 #include "code\modules\projectiles\guns\projectile\automatic.dm"
 #include "code\modules\projectiles\guns\projectile\automatic_vr.dm"
 #include "code\modules\projectiles\guns\projectile\boltaction.dm"
+#include "code\modules\projectiles\guns\projectile\caseless.dm"
 #include "code\modules\projectiles\guns\projectile\contender.dm"
 #include "code\modules\projectiles\guns\projectile\dartgun.dm"
 #include "code\modules\projectiles\guns\projectile\pistol.dm"