Completes major inhand split project (#2178)

code/game/objects/items/weapons/grenades/flashbang.dm

@@ -2,6 +2,8 @@
 	name = "flashbang"
 	icon_state = "flashbang"
 	item_state = "flashbang"
+	lefthand_file = 'icons/mob/inhands/equipment/security_lefthand.dmi'
+	righthand_file = 'icons/mob/inhands/equipment/security_righthand.dmi'
 	origin_tech = "materials=2;combat=3"
 
 /obj/item/weapon/grenade/flashbang/prime()

code/game/objects/items/weapons/grenades/ghettobomb.dm

@@ -7,6 +7,8 @@
 	icon = 'icons/obj/grenade.dmi'
 	icon_state = "improvised_grenade"
 	item_state = "flashbang"
+	lefthand_file = 'icons/mob/inhands/equipment/security_lefthand.dmi'
+	righthand_file = 'icons/mob/inhands/equipment/security_righthand.dmi'
 	throw_speed = 3
 	throw_range = 7
 	flags = CONDUCT

code/game/objects/items/weapons/grenades/grenade.dm

@@ -5,6 +5,8 @@
 	icon = 'icons/obj/grenade.dmi'
 	icon_state = "grenade"
 	item_state = "flashbang"
+	lefthand_file = 'icons/mob/inhands/equipment/security_lefthand.dmi'
+	righthand_file = 'icons/mob/inhands/equipment/security_righthand.dmi'
 	throw_speed = 3
 	throw_range = 7
 	flags = CONDUCT

code/game/objects/items/weapons/grenades/plastic.dm

@@ -162,6 +162,8 @@
 	icon = 'icons/obj/grenade.dmi'
 	icon_state = "plastic-explosive0"
 	item_state = "plasticx"
+	lefthand_file = 'icons/mob/inhands/weapons/bombs_lefthand.dmi'
+	righthand_file = 'icons/mob/inhands/weapons/bombs_righthand.dmi'
 	flags = NOBLUDGEON
 	w_class = WEIGHT_CLASS_SMALL
 	origin_tech = "syndicate=1"