diff --git a/code/modules/research/designs/autolathe_desings/autolathe_designs_construction.dm b/code/modules/research/designs/autolathe_desings/autolathe_designs_construction.dm
index 4c1d284979..c3e3993cb2 100644
--- a/code/modules/research/designs/autolathe_desings/autolathe_designs_construction.dm
+++ b/code/modules/research/designs/autolathe_desings/autolathe_designs_construction.dm
@@ -104,7 +104,16 @@
 	name = "Compressed Matter Cartridge"
 	id = "rcd_ammo"
 	build_type = AUTOLATHE | PROTOLATHE
-	materials = list(MAT_METAL = 12000, MAT_GLASS=8000)
+	materials = list(MAT_METAL = 12000, MAT_GLASS = 8000)
 	build_path = /obj/item/rcd_ammo
 	category = list("initial","Construction","Tool Designs")
 	departmental_flags = DEPARTMENTAL_FLAG_ENGINEERING
+
+/datum/design/rcd_ammo_large
+	name = "Large Compressed Matter Cartridge"
+	id = "rcd_ammo_large"
+	build_type = AUTOLATHE | PROTOLATHE
+	materials = list(MAT_METAL = 48000, MAT_GLASS = 32000)
+	build_path = /obj/item/rcd_ammo/large
+	category = list("Tool Designs")
+	departmental_flags = DEPARTMENTAL_FLAG_ENGINEERING
diff --git a/code/modules/research/techweb/all_nodes.dm b/code/modules/research/techweb/all_nodes.dm
index 2fa5901ec9..fb9aa71398 100644
--- a/code/modules/research/techweb/all_nodes.dm
+++ b/code/modules/research/techweb/all_nodes.dm
@@ -200,7 +200,7 @@
 	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" , "rcd_loaded", "rpd", "tray_goggles_prescription", "engine_goggles_prescription", "mesons_prescription", "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", "rcd_ammo_large")
 	research_costs = list(TECHWEB_POINT_TYPE_GENERIC = 4000)
 	export_price = 5000