diff --git a/code/game/gamemodes/cult/ritual.dm b/code/game/gamemodes/cult/ritual.dm
index cba7a96ef4..d8c41eea42 100644
--- a/code/game/gamemodes/cult/ritual.dm
+++ b/code/game/gamemodes/cult/ritual.dm
@@ -105,7 +105,7 @@ var/global/list/rnwords = list("ire","ego","nahlizet","certum","veri","jatkaa","
 		if(!iscultist(user))
 			user << "You can't mouth the arcane scratchings without fumbling over them."
 			return
-		if(istype(user.wear_mask, /obj/item/clothing/mask/muzzle))
+		if(user.is_muzzled())
 			user << "You are unable to speak the words of the rune."
 			return
 		if(!word1 || !word2 || !word3 || prob(user.getBrainLoss()))
diff --git a/code/game/objects/items/weapons/grenades/chem_grenade.dm b/code/game/objects/items/weapons/grenades/chem_grenade.dm
index c3d97c47be..d022c335e0 100644
--- a/code/game/objects/items/weapons/grenades/chem_grenade.dm
+++ b/code/game/objects/items/weapons/grenades/chem_grenade.dm
@@ -6,6 +6,7 @@
 	w_class = 2.0
 	force = 2.0
 	det_time = null
+
 	var/stage = 0
 	var/state = 0
 	var/path = 0
diff --git a/code/game/objects/items/weapons/grenades/grenade.dm b/code/game/objects/items/weapons/grenades/grenade.dm
index 16d8a620f9..c5a0607315 100644
--- a/code/game/objects/items/weapons/grenades/grenade.dm
+++ b/code/game/objects/items/weapons/grenades/grenade.dm
@@ -8,7 +8,8 @@
 	throw_speed = 4
 	throw_range = 20
 	flags = CONDUCT
-	slot_flags = SLOT_BELT
+	slot_flags = SLOT_MASK|SLOT_BELT
+
 	var/active = 0
 	var/det_time = 50
 
diff --git a/code/game/objects/items/weapons/grenades/spawnergrenade.dm b/code/game/objects/items/weapons/grenades/spawnergrenade.dm
index 9677a73345..5ca0bd3845 100644
--- a/code/game/objects/items/weapons/grenades/spawnergrenade.dm
+++ b/code/game/objects/items/weapons/grenades/spawnergrenade.dm
@@ -9,27 +9,25 @@
 	var/spawner_type = null // must be an object path
 	var/deliveryamt = 1 // amount of type to deliver
 
-	prime()													// Prime now just handles the two loops that query for people in lockers and people who can see it.
+// Prime now just handles the two loops that query for people in lockers and people who can see it.
+/obj/item/weapon/grenade/spawnergrenade/prime()
 
-		if(spawner_type && deliveryamt)
-			// Make a quick flash
-			var/turf/T = get_turf(src)
-			playsound(T, 'sound/effects/phasein.ogg', 100, 1)
-			for(var/mob/living/carbon/human/M in viewers(T, null))
-				if(M:eyecheck() <= 0)
-					flick("e_flash", M.flash)
+	if(spawner_type && deliveryamt)
+		// Make a quick flash
+		var/turf/T = get_turf(src)
+		playsound(T, 'sound/effects/phasein.ogg', 100, 1)
+		for(var/mob/living/carbon/human/M in viewers(T, null))
+			if(M:eyecheck() <= 0)
+				flick("e_flash", M.flash)
 
-			for(var/i=1, i<=deliveryamt, i++)
-				var/atom/movable/x = new spawner_type
-				x.loc = T
-				if(prob(50))
-					for(var/j = 1, j <= rand(1, 3), j++)
-						step(x, pick(NORTH,SOUTH,EAST,WEST))
-
-				// Spawn some hostile syndicate critters
-
-		qdel(src)
-		return
+		// Spawn some hostile syndicate critters
+		for(var/i=1, i<=deliveryamt, i++)
+			var/atom/movable/x = new spawner_type(T)
+			if(prob(50))
+				for(var/j = 1, j <= rand(1, 3), j++)
+					step(x, pick(NORTH,SOUTH,EAST,WEST))
+	qdel(src)
+	return
 
 /obj/item/weapon/grenade/spawnergrenade/manhacks
 	name = "manhack delivery grenade"
diff --git a/code/game/objects/items/weapons/tape.dm b/code/game/objects/items/weapons/tape.dm
index f87000dd87..0eea22ea52 100644
--- a/code/game/objects/items/weapons/tape.dm
+++ b/code/game/objects/items/weapons/tape.dm
@@ -56,6 +56,7 @@
 				return
 
 			user.visible_message("<span class='danger'>\The [user] has taped up \the [H]'s mouth!</span>")
+
 			H.equip_to_slot_or_del(new /obj/item/clothing/mask/muzzle/tape(H), slot_wear_mask)
 
 		else if(user.zone_sel.selecting == "r_hand" || user.zone_sel.selecting == "l_hand")
diff --git a/code/modules/mob/emote.dm b/code/modules/mob/emote.dm
index 54f31d5b5b..9908a6378f 100644
--- a/code/modules/mob/emote.dm
+++ b/code/modules/mob/emote.dm
@@ -7,7 +7,7 @@
 		usr << "You are unable to emote."
 		return
 
-	var/muzzled = istype(src.wear_mask, /obj/item/clothing/mask/muzzle)
+	var/muzzled = is_muzzled()
 	if(m_type == 2 && muzzled) return
 
 	var/input
diff --git a/code/modules/mob/living/carbon/alien/emote.dm b/code/modules/mob/living/carbon/alien/emote.dm
index b3b0ae53c1..62fa2cf108 100644
--- a/code/modules/mob/living/carbon/alien/emote.dm
+++ b/code/modules/mob/living/carbon/alien/emote.dm
@@ -8,7 +8,7 @@
 
 	if(findtext(act,"s",-1) && !findtext(act,"_",-2))//Removes ending s's unless they are prefixed with a '_'
 		act = copytext(act,1,length(act))
-	var/muzzled = istype(src.wear_mask, /obj/item/clothing/mask/muzzle)
+	var/muzzled = is_muzzled()
 
 	switch(act)
 		if ("me")
diff --git a/code/modules/mob/living/carbon/human/emote.dm b/code/modules/mob/living/carbon/human/emote.dm
index 94c7f4600a..e98022acfd 100644
--- a/code/modules/mob/living/carbon/human/emote.dm
+++ b/code/modules/mob/living/carbon/human/emote.dm
@@ -9,7 +9,7 @@
 	if(findtext(act,"s",-1) && !findtext(act,"_",-2))//Removes ending s's unless they are prefixed with a '_'
 		act = copytext(act,1,length(act))
 
-	var/muzzled = istype(src.wear_mask, /obj/item/clothing/mask/muzzle)
+	var/muzzled = is_muzzled()
 	//var/m_type = 1
 
 	for (var/obj/item/weapon/implant/I in src)
diff --git a/code/modules/mob/living/carbon/human/examine.dm b/code/modules/mob/living/carbon/human/examine.dm
index c6501aae7c..d9a6850c3a 100644
--- a/code/modules/mob/living/carbon/human/examine.dm
+++ b/code/modules/mob/living/carbon/human/examine.dm
@@ -150,10 +150,14 @@
 
 	//mask
 	if(wear_mask && !skipmask)
+		var/descriptor = "on [T.his] face"
+		if(istype(wear_mask, /obj/item/weapon/grenade) && check_has_mouth())
+			descriptor = "in [T.his] mouth"
+
 		if(wear_mask.blood_DNA)
-			msg += "<span class='warning'>[T.He] [T.has] \icon[wear_mask] [wear_mask.gender==PLURAL?"some":"a"] [(wear_mask.blood_color != SYNTH_BLOOD_COLOUR) ? "blood" : "oil"]-stained [wear_mask.name] on [T.his] face!</span>\n"
+			msg += "<span class='warning'>[T.He] [T.has] \icon[wear_mask] [wear_mask.gender==PLURAL?"some":"a"] [(wear_mask.blood_color != SYNTH_BLOOD_COLOUR) ? "blood" : "oil"]-stained [wear_mask.name] [descriptor]!</span>\n"
 		else
-			msg += "[T.He] [T.has] \icon[wear_mask] \a [wear_mask] on [T.his] face.\n"
+			msg += "[T.He] [T.has] \icon[wear_mask] \a [wear_mask] [descriptor].\n"
 
 	//eyes
 	if(glasses && !skipeyes)
diff --git a/code/modules/mob/living/carbon/human/human.dm b/code/modules/mob/living/carbon/human/human.dm
index 303e4a565e..4495ed4175 100644
--- a/code/modules/mob/living/carbon/human/human.dm
+++ b/code/modules/mob/living/carbon/human/human.dm
@@ -1407,3 +1407,7 @@
 			return 0
 		return check_organ.can_feel_pain()
 	return !(species.flags & NO_PAIN)
+
+/mob/living/carbon/human/is_muzzled()
+	return (wear_mask && (istype(wear_mask, /obj/item/clothing/mask/muzzle) || istype(src.wear_mask, /obj/item/weapon/grenade)))
+
diff --git a/code/modules/mob/living/carbon/human/human_attackhand.dm b/code/modules/mob/living/carbon/human/human_attackhand.dm
index ae262677c8..cea8035a84 100644
--- a/code/modules/mob/living/carbon/human/human_attackhand.dm
+++ b/code/modules/mob/living/carbon/human/human_attackhand.dm
@@ -118,6 +118,16 @@
 
 		if(I_HURT)
 
+			if(M.zone_sel.selecting == "mouth" && wear_mask && istype(wear_mask, /obj/item/weapon/grenade))
+				var/obj/item/weapon/grenade/G = wear_mask
+				if(!G.active)
+					visible_message("<span class='danger'>\The [M] pulls the pin from \the [src]'s [G.name]!</span>")
+					G.activate(M)
+					update_inv_wear_mask()
+				else
+					M << "<span class='warning'>\The [G] is already primed! Run!</span>"
+				return
+
 			if(!istype(H))
 				attack_generic(H,rand(1,3),"punched")
 				return
diff --git a/code/modules/mob/living/carbon/human/stripping.dm b/code/modules/mob/living/carbon/human/stripping.dm
index 3ebef9e127..26efe8ee90 100644
--- a/code/modules/mob/living/carbon/human/stripping.dm
+++ b/code/modules/mob/living/carbon/human/stripping.dm
@@ -69,7 +69,10 @@
 	if(stripping)
 		visible_message("<span class='danger'>\The [user] is trying to remove \the [src]'s [target_slot.name]!</span>")
 	else
-		visible_message("<span class='danger'>\The [user] is trying to put \a [held] on \the [src]!</span>")
+		if(slot_to_strip == slot_wear_mask && istype(held, /obj/item/weapon/grenade))
+			visible_message("<span class='danger'>\The [user] is trying to put \a [held] in \the [src]'s mouth!</span>")
+		else
+			visible_message("<span class='danger'>\The [user] is trying to put \a [held] on \the [src]!</span>")
 
 	if(!do_after(user,HUMAN_STRIP_DELAY))
 		return
diff --git a/code/modules/mob/living/carbon/human/unarmed_attack.dm b/code/modules/mob/living/carbon/human/unarmed_attack.dm
index b5a78b642c..e56158904f 100644
--- a/code/modules/mob/living/carbon/human/unarmed_attack.dm
+++ b/code/modules/mob/living/carbon/human/unarmed_attack.dm
@@ -112,7 +112,7 @@ var/global/list/sparring_attack_cache = list()
 
 /datum/unarmed_attack/bite/is_usable(var/mob/living/carbon/human/user, var/mob/living/carbon/human/target, var/zone)
 
-	if (user.wear_mask && istype(user.wear_mask, /obj/item/clothing/mask/muzzle))
+	if (user.is_muzzled())
 		return 0
 	if (user == target && (zone == BP_HEAD || zone == O_EYES || zone == O_MOUTH))
 		return 0
diff --git a/code/modules/mob/living/carbon/human/update_icons.dm b/code/modules/mob/living/carbon/human/update_icons.dm
index 8d7b0aeeae..868c7913b3 100644
--- a/code/modules/mob/living/carbon/human/update_icons.dm
+++ b/code/modules/mob/living/carbon/human/update_icons.dm
@@ -788,7 +788,7 @@ var/global/list/damage_icon_parts = list()
 
 
 /mob/living/carbon/human/update_inv_wear_mask(var/update_icons=1)
-	if( wear_mask && ( istype(wear_mask, /obj/item/clothing/mask) || istype(wear_mask, /obj/item/clothing/accessory) ) && !(head && head.flags_inv & HIDEMASK))
+	if( wear_mask && ( istype(wear_mask, /obj/item/clothing/mask) || istype(wear_mask, /obj/item/clothing/accessory) || istype(wear_mask, /obj/item/weapon/grenade) ) && !(head && head.flags_inv & HIDEMASK))
 		wear_mask.screen_loc = ui_mask	//TODO
 
 		var/image/standing
diff --git a/code/modules/mob/living/carbon/human/whisper.dm b/code/modules/mob/living/carbon/human/whisper.dm
index 7336189e11..4d59841cd6 100644
--- a/code/modules/mob/living/carbon/human/whisper.dm
+++ b/code/modules/mob/living/carbon/human/whisper.dm
@@ -37,7 +37,7 @@
 //This is used by both the whisper verb and human/say() to handle whispering
 /mob/living/carbon/human/proc/whisper_say(var/message, var/datum/language/speaking = null, var/alt_name="", var/verb="whispers")
 
-	if (istype(src.wear_mask, /obj/item/clothing/mask/muzzle))
+	if (is_muzzled())
 		src << "<span class='danger'>You're muzzled and cannot speak!</span>"
 		return
 
diff --git a/code/modules/mob/living/say.dm b/code/modules/mob/living/say.dm
index 460a16d3df..fe33cfdcb9 100644
--- a/code/modules/mob/living/say.dm
+++ b/code/modules/mob/living/say.dm
@@ -82,9 +82,6 @@ proc/get_radio_key_from_channel(var/channel)
 /mob/living/proc/get_default_language()
 	return default_language
 
-/mob/living/proc/is_muzzled()
-	return 0
-
 /mob/living/proc/handle_speech_problems(var/message, var/verb)
 	var/list/returns[3]
 	var/speech_problem_flag = 0
@@ -167,7 +164,7 @@ proc/get_radio_key_from_channel(var/channel)
 		speaking.broadcast(src,trim(message))
 		return 1
 
-	verb = say_quote(message, speaking)
+	verb = say_quote(message, speaking)
 
 	if(is_muzzled())
 		src << "<span class='danger'>You're muzzled and cannot speak!</span>"
diff --git a/code/modules/mob/mob.dm b/code/modules/mob/mob.dm
index ff45cb71d0..e6a0b277f6 100644
--- a/code/modules/mob/mob.dm
+++ b/code/modules/mob/mob.dm
@@ -1131,3 +1131,7 @@ mob/proc/yank_out_object()
 
 /mob/proc/isSynthetic()
 	return 0
+
+/mob/proc/is_muzzled()
+	return 0
+
diff --git a/code/modules/spells/spell_code.dm b/code/modules/spells/spell_code.dm
index 1e8274757e..6b648fb392 100644
--- a/code/modules/spells/spell_code.dm
+++ b/code/modules/spells/spell_code.dm
@@ -213,7 +213,7 @@ var/list/spells = typesof(/spell) //needed for the badmin verb for now
 			return 0
 
 		if(ishuman(user) && !(invocation_type in list(SpI_EMOTE, SpI_NONE)))
-			if(istype(user.wear_mask, /obj/item/clothing/mask/muzzle))
+			if(user.is_muzzled())
 				user << "Mmmf mrrfff!"
 				return 0
 
diff --git a/html/changelogs/Zuhayr-grenades.yml b/html/changelogs/Zuhayr-grenades.yml
new file mode 100644
index 0000000000..f68cc2e536
--- /dev/null
+++ b/html/changelogs/Zuhayr-grenades.yml
@@ -0,0 +1,4 @@
+author: Zuhayr
+delete-after: True
+changes: 
+  - rscadd: "Added the ability to equip grenades to the mask slot, and to prime them by clicking someone with harm intent targeting the mouth."
diff --git a/icons/mob/mask.dmi b/icons/mob/mask.dmi
index 7ff6b43cb8..f8ce408041 100644
Binary files a/icons/mob/mask.dmi and b/icons/mob/mask.dmi differ