diff --git a/code/modules/projectiles/guns/energy/special.dm b/code/modules/projectiles/guns/energy/special.dm
index a08e570dd7..8da79dc286 100644
--- a/code/modules/projectiles/guns/energy/special.dm
+++ b/code/modules/projectiles/guns/energy/special.dm
@@ -173,18 +173,60 @@
 	force = 15
 	ammo_type = list(/obj/item/ammo_casing/energy/plasma/adv)
 
+//Sci guns
+
+/obj/item/gun/energy/gravity_gun
+	name = "one-point gravitational manipulator"
+	desc = "An experimental, multi-mode device that fires bolts of Zero-Point Energy, causing local distortions in gravity. Requires a gravitational anomaly core to function."
+	ammo_type = list(/obj/item/ammo_casing/energy/gravity/repulse, /obj/item/ammo_casing/energy/gravity/attract, /obj/item/ammo_casing/energy/gravity/chaos)
+	item_state = "gravity_gun"
+	icon_state = "gravity_gun"
+	var/power = 4
+	var/firing_core = FALSE
+
+/obj/item/gun/energy/gravity_gun/attackby(obj/item/C, mob/user)
+	if(istype(C, /obj/item/assembly/signaler/anomaly))
+		to_chat(user, "<span class='notice'>You insert [C] into the gravitational manipulator and the weapon gently hums to life.</span>")
+		firing_core = TRUE
+		playsound(src.loc, 'sound/machines/click.ogg', 50, TRUE)
+		qdel(C)
+		return
+	return ..()
+
+/obj/item/gun/energy/gravity_gun/can_shoot()
+	if(!firing_core)
+		return FALSE
+	return ..()
+
 /obj/item/gun/energy/wormhole_projector
 	name = "bluespace wormhole projector"
-	desc = "A projector that emits high density quantum-coupled bluespace beams."
+	desc = "A projector that emits high density quantum-coupled bluespace beams. Requires a bluespace anomaly core to function."
 	ammo_type = list(/obj/item/ammo_casing/energy/wormhole, /obj/item/ammo_casing/energy/wormhole/orange)
 	item_state = null
 	icon_state = "wormhole_projector"
-	pin = null
 	inaccuracy_modifier = 0.25
 	automatic_charge_overlays = FALSE
 	var/obj/effect/portal/p_blue
 	var/obj/effect/portal/p_orange
 	var/atmos_link = FALSE
+	var/firing_core = FALSE
+
+/obj/item/gun/energy/wormhole_projector/attackby(obj/item/C, mob/user)
+	if(istype(C, /obj/item/assembly/signaler/anomaly))
+		to_chat(user, "<span class='notice'>You insert [C] into the wormhole projector and the weapon gently hums to life.</span>")
+		firing_core = TRUE
+		playsound(src.loc, 'sound/machines/click.ogg', 50, TRUE)
+		qdel(C)
+		return
+
+/obj/item/gun/energy/wormhole_projector/can_shoot()
+	if(!firing_core)
+		return FALSE
+	return ..()
+
+/obj/item/gun/energy/wormhole_projector/shoot_with_empty_chamber(mob/living/user)
+	. = ..()
+	to_chat(user, "<span class='danger'>The display says, 'NO CORE INSTALLED'.</span>")
 
 /obj/item/gun/energy/wormhole_projector/update_icon_state()
 	icon_state = "[initial(icon_state)][current_firemode_index]"
@@ -243,6 +285,9 @@
 		p_blue = P
 	crosslink()
 
+/obj/item/gun/energy/wormhole_projector/core_inserted
+	firing_core = TRUE
+
 /* 3d printer 'pseudo guns' for borgs */
 
 /obj/item/gun/energy/printer
@@ -298,18 +343,6 @@
 /obj/item/gun/energy/laser/instakill/emp_act() //implying you could stop the instagib
 	return
 
-/obj/item/gun/energy/gravity_gun
-	name = "one-point bluespace-gravitational manipulator"
-	desc = "An experimental, multi-mode device that fires bolts of Zero-Point Energy, causing local distortions in gravity."
-	ammo_type = list(/obj/item/ammo_casing/energy/gravity/repulse, /obj/item/ammo_casing/energy/gravity/attract, /obj/item/ammo_casing/energy/gravity/chaos)
-	item_state = "gravity_gun"
-	icon_state = "gravity_gun"
-	pin = null
-	var/power = 4
-
-/obj/item/gun/energy/gravity_gun/security
-	pin = /obj/item/firing_pin
-
 //Emitter Gun
 
 /obj/item/gun/energy/emitter