diff --git a/code/game/machinery/firealarm.dm b/code/game/machinery/firealarm.dm
index 9f3a5904..1ef3fc0a 100644
--- a/code/game/machinery/firealarm.dm
+++ b/code/game/machinery/firealarm.dm
@@ -256,6 +256,20 @@
 					return
 	return ..()
 
+/obj/machinery/firealarm/rcd_vals(mob/user, obj/item/construction/rcd/the_rcd)
+	if((buildstage == 0) && (the_rcd.upgrade & RCD_UPGRADE_SIMPLE_CIRCUITS))
+		return list("mode" = RCD_UPGRADE_SIMPLE_CIRCUITS, "delay" = 20, "cost" = 1)
+	return FALSE
+
+/obj/machinery/firealarm/rcd_act(mob/user, obj/item/construction/rcd/the_rcd, passed_mode)
+	switch(passed_mode)
+		if(RCD_UPGRADE_SIMPLE_CIRCUITS)
+			user.visible_message("<span class='notice'>[user] fabricates a circuit and places it into [src].</span>", \
+			"<span class='notice'>You adapt a fire alarm circuit and slot it into the assembly.</span>")
+			buildstage = 1
+			update_icon()
+			return TRUE
+	return FALSE
 
 /obj/machinery/firealarm/take_damage(damage_amount, damage_type = BRUTE, damage_flag = 0, sound_effect = 1, attack_dir)
 	. = ..()
diff --git a/code/game/objects/effects/temporary_visuals/miscellaneous.dm b/code/game/objects/effects/temporary_visuals/miscellaneous.dm
index 296112a4..3be5e846 100644
--- a/code/game/objects/effects/temporary_visuals/miscellaneous.dm
+++ b/code/game/objects/effects/temporary_visuals/miscellaneous.dm
@@ -438,6 +438,13 @@
 	else
 		return INITIALIZE_HINT_QDEL
 
+/obj/effect/temp_visual/slugboom
+	icon = 'icons/effects/96x96.dmi'
+	icon_state = "slugboom"
+	randomdir = FALSE
+	duration = 30
+	pixel_x = -24
+
 /obj/effect/constructing_effect
 	icon = 'icons/effects/effects_rcd.dmi'
 	icon_state = ""
@@ -477,4 +484,4 @@
 		addtimer(CALLBACK(src, .proc/end), 15)
 
 /obj/effect/constructing_effect/proc/end()
-	qdel(src) 
\ No newline at end of file
+	qdel(src) 
diff --git a/code/game/objects/items/RCD.dm b/code/game/objects/items/RCD.dm
index e3c1953e..3ec976cb 100644
--- a/code/game/objects/items/RCD.dm
+++ b/code/game/objects/items/RCD.dm
@@ -47,9 +47,9 @@ RLD
 
 /obj/item/construction/examine(mob/user)
 	. = ..()
-	. += "\A [src]. It currently holds [matter]/[max_matter] matter-units."
+	. += "It currently holds [matter]/[max_matter] matter-units."
 	if(upgrade & RCD_UPGRADE_FRAMES)
-		. += "It contains the design for machine frames, computer frames and deconstruction." 
+		. += "It contains the design for machine frames, computer frames and deconstruction."
 	if(upgrade & RCD_UPGRADE_SIMPLE_CIRCUITS)
 		. += "It contains the design for firelock, air alarm, fire alarm, apc circuits and crap power cells."
 
diff --git a/code/modules/research/designs/misc_designs.dm b/code/modules/research/designs/misc_designs.dm
index 706d209d..959d0ed5 100644
--- a/code/modules/research/designs/misc_designs.dm
+++ b/code/modules/research/designs/misc_designs.dm
@@ -488,15 +488,15 @@
 	desc = "A tool that can construct and deconstruct walls, airlocks and floors on the fly."
 	id = "rcd_loaded"
 	build_type = PROTOLATHE
-	materials = list(MAT_METAL=48000, MAT_GLASS=32000)  // costs more than what it did in the autolathe, this one comes loaded.
+	materials = list(MAT_METAL = MINERAL_MATERIAL_AMOUNT, MAT_GLASS = MINERAL_MATERIAL_AMOUNT)  // costs more than what it did in the autolathe, this one comes loaded.
 	build_path = /obj/item/construction/rcd/loaded
 	category = list("Equipment")
 	departmental_flags =  DEPARTMENTAL_FLAG_ENGINEERING
 
-/datum/design/pipe_dispenser
+/datum/design/rpd
 	name = "Rapid Pipe Dispenser (RPD)"
 	desc = "A tool that can construct and deconstruct pipes on the fly."
-	id = "pipe_dispenser"
+	id = "rpd"
 	build_type = PROTOLATHE
 	materials = list(MAT_METAL = 75000, MAT_GLASS = 37500)
 	build_path = /obj/item/pipe_dispenser
diff --git a/code/modules/research/techweb/all_nodes.dm b/code/modules/research/techweb/all_nodes.dm
index 17b30565..a13739e3 100644
--- a/code/modules/research/techweb/all_nodes.dm
+++ b/code/modules/research/techweb/all_nodes.dm
@@ -201,7 +201,7 @@
 	display_name = "Advanced Engineering"
 	description = "Pushing the boundaries of physics, one chainsaw-fist at a time."
 	prereq_ids = list("engineering", "emp_basic")
-	design_ids = list("engine_goggles", "magboots", "forcefield_projector", "weldingmask", "tray_goggles_prescription", "engine_goggles_prescription", "mesons_prescription", "double_emergency_oxygen","rcd_loaded", "pipe_dispenser","rcd_upgrade_frames", "rcd_upgrade_simple_circuits")
+	design_ids = list("engine_goggles", "magboots", "forcefield_projector", "weldingmask", "rcd_loaded", "rpd", "tray_goggles_prescription", "engine_goggles_prescription", "mesons_prescription","rcd_upgrade_frames", "rcd_upgrade_simple_circuits", "double_emergency_oxygen")
 	research_costs = list(TECHWEB_POINT_TYPE_GENERIC = 4000)
 	export_price = 5000