diff --git a/code/__DEFINES/dcs/signals.dm b/code/__DEFINES/dcs/signals.dm
index 3cb1af15965..7e1912a46a6 100644
--- a/code/__DEFINES/dcs/signals.dm
+++ b/code/__DEFINES/dcs/signals.dm
@@ -344,6 +344,8 @@
 #define COMSIG_MOB_ATTACK_RANGED "mob_attack_ranged"
 ///from base of /mob/throw_item(): (atom/target)
 #define COMSIG_MOB_THROW "mob_throw"
+///called when a user willingly drops something (i.e. keybind, or UI action)
+#define COMSIG_MOB_WILLINGLY_DROP "mob_willingly_drop"
 ///from base of /mob/verb/examinate(): (atom/target)
 #define COMSIG_MOB_EXAMINATE "mob_examinate"
 ///from base of /mob/update_sight(): ()
diff --git a/code/datums/keybindings/mob.dm b/code/datums/keybindings/mob.dm
index 631f8515a6c..4eca61522be 100644
--- a/code/datums/keybindings/mob.dm
+++ b/code/datums/keybindings/mob.dm
@@ -25,8 +25,9 @@
 /datum/keybinding/mob/drop_held_object/down(client/C)
 	. = ..()
 	var/obj/item/I = C.mob.get_active_hand()
+	SEND_SIGNAL(C.mob, COMSIG_MOB_WILLINGLY_DROP)
 	if(I)
-		C.mob.drop_item(I)
+		C.mob.drop_item()
 	else
 		to_chat(C, "<span class='warning'>You have nothing to drop in your hand!</span>")
 
diff --git a/code/game/objects/items/devices/flash.dm b/code/game/objects/items/devices/flash.dm
index cd74120329a..42cc2acc509 100644
--- a/code/game/objects/items/devices/flash.dm
+++ b/code/game/objects/items/devices/flash.dm
@@ -248,15 +248,15 @@
 	name = "photon projector"
 	desc = "A high-powered photon projector implant normally used for lighting purposes, but also doubles as a flashbulb weapon. Self-repair protocols fix the flashbulb if it ever burns out."
 	cooldown_duration = 2 SECONDS
-	var/obj/item/organ/internal/cyberimp/arm/flash/I = null
+	var/obj/item/organ/internal/cyberimp/arm/implant = null
 
 /obj/item/flash/armimplant/burn_out()
-	if(I && I.owner)
-		to_chat(I.owner, "<span class='warning'>Your [name] implant overheats and deactivates!</span>")
-		I.Retract()
+	if(implant?.owner)
+		to_chat(implant.owner, "<span class='warning'>Your [name] implant overheats and deactivates!</span>")
+		implant.Retract()
 
 /obj/item/flash/armimplant/Destroy()
-	I = null
+	implant = null
 	return ..()
 
 /obj/item/flash/synthetic //just a regular flash now
diff --git a/code/modules/mob/inventory.dm b/code/modules/mob/inventory.dm
index f845e95dc40..3a287ee3b71 100644
--- a/code/modules/mob/inventory.dm
+++ b/code/modules/mob/inventory.dm
@@ -103,6 +103,7 @@
 
 /mob/proc/drop_item_v()		//this is dumb.
 	if(stat == CONSCIOUS && isturf(loc))
+		SEND_SIGNAL(usr, COMSIG_MOB_WILLINGLY_DROP)
 		return drop_item()
 	return 0
 
@@ -125,10 +126,10 @@
 
 /mob/proc/canUnEquip(obj/item/I, force)
 	if(!I)
-		return 1
+		return TRUE
 	if((I.flags & NODROP) && !force)
-		return 0
-	return 1
+		return FALSE
+	return TRUE
 
 /mob/proc/unEquip(obj/item/I, force, silent = FALSE) //Force overrides NODROP for things like wizarditis and admin undress.
 	if(!I) //If there's nothing to drop, the drop is automatically succesfull. If(unEquip) should generally be used to check for NODROP.
diff --git a/code/modules/mob/mob_defines.dm b/code/modules/mob/mob_defines.dm
index 278e424fcbb..3d128502f52 100644
--- a/code/modules/mob/mob_defines.dm
+++ b/code/modules/mob/mob_defines.dm
@@ -44,6 +44,7 @@
 	var/memory = ""
 	var/next_move = null
 	var/notransform = FALSE	//Carbon
+	/// True for left hand active, otherwise for right hand active
 	var/hand = null
 	var/real_name = null
 	var/flavor_text = ""
diff --git a/code/modules/surgery/organs/augments_arms.dm b/code/modules/surgery/organs/augments_arms.dm
index 49c46c6cbf8..a6b4fbfcf37 100644
--- a/code/modules/surgery/organs/augments_arms.dm
+++ b/code/modules/surgery/organs/augments_arms.dm
@@ -45,6 +45,9 @@
 	to_chat(user, "<span class='notice'>You modify [src] to be installed on the [parent_organ == "r_arm" ? "right" : "left"] arm.</span>")
 	update_icon(UPDATE_ICON_STATE)
 
+/obj/item/organ/internal/cyberimp/arm/insert(mob/living/carbon/M, special, dont_remove_slot)
+	. = ..()
+	RegisterSignal(M, COMSIG_MOB_WILLINGLY_DROP, PROC_REF(retract_to_linked_implant))
 
 /obj/item/organ/internal/cyberimp/arm/remove(mob/living/carbon/M, special = 0)
 	Retract()
@@ -62,6 +65,16 @@
 		Retract()
 	..()
 
+/obj/item/organ/internal/cyberimp/arm/proc/retract_to_linked_implant()
+	SIGNAL_HANDLER
+	if(holder && holder == owner.get_active_hand())
+		INVOKE_ASYNC(src, PROC_REF(retract_and_show_radial))
+
+/obj/item/organ/internal/cyberimp/arm/proc/retract_and_show_radial()
+	Retract()
+	if(length(items_list) != 1)
+		radial_menu(owner)
+
 /obj/item/organ/internal/cyberimp/arm/proc/check_cuffs()
 	if(owner.handcuffed)
 		to_chat(owner, "<span class='warning'>The handcuffs interfere with [src]!</span>")
@@ -253,7 +266,7 @@
 	..()
 	if(locate(/obj/item/flash/armimplant) in items_list)
 		var/obj/item/flash/armimplant/F = locate(/obj/item/flash/armimplant) in items_list
-		F.I = src
+		F.implant = src
 
 /obj/item/organ/internal/cyberimp/arm/baton
 	name = "arm electrification implant"
@@ -271,7 +284,7 @@
 	..()
 	if(locate(/obj/item/flash/armimplant) in items_list)
 		var/obj/item/flash/armimplant/F = locate(/obj/item/flash/armimplant) in items_list
-		F.I = src
+		F.implant = src
 
 /obj/item/organ/internal/cyberimp/arm/combat/centcom
 	name = "NT specops cybernetics implant"