First wave of fixing

code/_globalvars/lists/maintenance_loot.dm

@@ -89,7 +89,7 @@ GLOBAL_LIST_INIT(maintenance_loot, list(
 	/obj/effect/spawner/lootdrop/welder_tools = 3,
 	/obj/effect/spawner/lootdrop/low_tools = 5,
 	/obj/item/relic = 3,
-	/obj/item/weaponcrafting/improvised_parts/shotgun_receiver = 2,
+	/obj/item/weaponcrafting/receiver = 2,
 	/obj/item/clothing/head/cone = 2,
 	/obj/item/grenade/smokebomb = 2,
 	/obj/item/geiger_counter = 3,

code/datums/components/crafting/guncrafting.dm

@@ -1,6 +1,7 @@
 // PARTS //
 /obj/item/weaponcrafting
 	icon = 'icons/obj/improvised.dmi'
+
 /obj/item/weaponcrafting/receiver
 	name = "modular receiver"
 	desc = "A prototype modular receiver and trigger assembly for a firearm."

code/game/objects/items/stacks/sheets/sheet_types.dm

@@ -246,7 +246,6 @@ GLOBAL_LIST_INIT(wood_recipes, list ( \
 		new /datum/stack_recipe("pew (right)", /obj/structure/chair/pew/right, 3, one_per_turf = TRUE, on_floor = TRUE),\
 		)),
 	null, \
-	new/datum/stack_recipe("wooden firearm body", /obj/item/weaponcrafting/improvised_parts/wooden_body, 10, time = 20), \
 	new/datum/stack_recipe("rifle stock", /obj/item/weaponcrafting/stock, 10, time = 20), \
 	new/datum/stack_recipe("rolling pin", /obj/item/kitchen/rollingpin, 2, time = 30), \
 	new/datum/stack_recipe("wooden bucket", /obj/item/reagent_containers/glass/bucket/wood, 2, time = 30), \

code/modules/holiday/halloween/bartholomew.dm

@@ -117,7 +117,7 @@
 	/obj/item/weldingtool = 3,
 	/obj/item/wirecutters = 2,
 	/obj/item/wrench = 4,
-	/obj/item/weaponcrafting/improvised_parts/shotgun_receiver = 1,
+	/obj/item/weaponcrafting/receiver = 1,
 	/obj/item/geiger_counter = 3,
 	/obj/item/reagent_containers/food/snacks/grown/citrus/orange = 5,
 	/obj/item/assembly/infra = 1,