diff --git a/code/game/objects/items/weapons/grenades/chem_grenade.dm b/code/game/objects/items/weapons/grenades/chem_grenade.dm
index 62acbe2d863e..06daebbcfeff 100644
--- a/code/game/objects/items/weapons/grenades/chem_grenade.dm
+++ b/code/game/objects/items/weapons/grenades/chem_grenade.dm
@@ -221,7 +221,7 @@
 		return TRUE
 
 	else if(stage == READY && !nadeassembly)
-		det_time = det_time == 50 ? 30 : 50	//toggle between 30 and 50
+		det_time = det_time == 5 SECONDS ? 3 SECONDS : 5 SECONDS	// Toggle between 3 and 5 seconds.
 		to_chat(user, "<span class='notice'>You modify the time delay. It's set for [det_time / 10] second\s.</span>")
 		return TRUE
 
diff --git a/code/game/objects/items/weapons/grenades/clusterbuster.dm b/code/game/objects/items/weapons/grenades/clusterbuster.dm
index 041fa0f20f0b..32922e07aff9 100644
--- a/code/game/objects/items/weapons/grenades/clusterbuster.dm
+++ b/code/game/objects/items/weapons/grenades/clusterbuster.dm
@@ -2,13 +2,17 @@
 //Clusterbang
 ////////////////////
 /obj/item/grenade/clusterbuster
-	desc = "Use of this weapon may constitute a war crime in your area, consult your local captain."
 	name = "clusterbang"
+	desc = "Use of this weapon may constitute a war crime in your area, consult your local captain."
 	icon = 'icons/obj/grenade.dmi'
 	icon_state = "clusterbang"
 	item_state = "flashbang"
 	var/payload = /obj/item/grenade/flashbang/cluster
 
+/obj/item/grenade/clusterbuster/examine(mob/user)
+	. = ..()
+	. += "<span class='notice'>Upon detonating, this grenade will explode into a shower of bomblets that will all explode individually. Be ready to run away very fast.</span>"
+
 /obj/item/grenade/clusterbuster/prime()
 	update_mob()
 	var/numspawned = rand(4,8)
@@ -33,8 +37,8 @@
 //Clusterbang segment
 //////////////////////
 /obj/item/grenade/clusterbuster/segment
-	desc = "A smaller segment of a clusterbang. Better run."
-	name = "clusterbang segment"
+	name = "clusterbang bomblet"
+	desc = "A bomblet released by a clusterbang. Better run!"
 	icon = 'icons/obj/grenade.dmi'
 	icon_state = "clusterbang_segment"
 
@@ -242,9 +246,11 @@
 
 /obj/item/grenade/clusterbuster/mega_bang
 	name = "For when stunlocking is just too short."
+	desc = "Simply owning one of these makes you an active war criminal in all Nian jurisdictions."
 	payload = /obj/item/grenade/clusterbuster
 
 /obj/item/grenade/clusterbuster/mega_syndieminibomb
 	name = "Mega SyndiWrath."
+	desc = "Proving once and for all that the maximum bomb explosion radius is just a suggestion."
 	payload = /obj/item/grenade/clusterbuster/syndieminibomb
 
diff --git a/code/game/objects/items/weapons/grenades/custom_grenades.dm b/code/game/objects/items/weapons/grenades/custom_grenades.dm
index 7729b9f2fae4..26242373ee62 100644
--- a/code/game/objects/items/weapons/grenades/custom_grenades.dm
+++ b/code/game/objects/items/weapons/grenades/custom_grenades.dm
@@ -41,7 +41,7 @@
 	payload_name = "holy water"
 	desc = "Then shalt thou count to three, no more, no less."
 	stage = 2
-	det_time = 30
+	det_time = 3 SECONDS
 
 /obj/item/grenade/chem_grenade/holywater/Initialize(mapload)
 	. = ..()
diff --git a/code/game/objects/items/weapons/grenades/emgrenade.dm b/code/game/objects/items/weapons/grenades/emgrenade.dm
index 8807391d52b1..d89f07c5b71a 100644
--- a/code/game/objects/items/weapons/grenades/emgrenade.dm
+++ b/code/game/objects/items/weapons/grenades/emgrenade.dm
@@ -1,6 +1,6 @@
 /obj/item/grenade/empgrenade
 	name = "classic EMP grenade"
-	desc = "It is designed to wreak havoc on electronic systems."
+	desc = "Upon detonation, releases a powerful EMP that will wreak havoc on electronic systems."
 	icon_state = "emp"
 	item_state = "emp"
 	origin_tech = "magnets=3;combat=2"
diff --git a/code/game/objects/items/weapons/grenades/flashbang.dm b/code/game/objects/items/weapons/grenades/flashbang.dm
index 148d86db3584..23d3a1e5fba8 100644
--- a/code/game/objects/items/weapons/grenades/flashbang.dm
+++ b/code/game/objects/items/weapons/grenades/flashbang.dm
@@ -1,5 +1,6 @@
 /obj/item/grenade/flashbang
 	name = "flashbang"
+	desc = "A less-than-lethal grenade designed for crowd control. Blinds all unprotected targets in range and disrupts their balance, sending them falling to the floor."
 	icon_state = "flashbang"
 	item_state = "flashbang"
 	belt_icon = "flashbang"
@@ -7,8 +8,10 @@
 	light_power = 10
 	light_color = LIGHT_COLOR_WHITE
 
-	var/light_time = 0.2 SECONDS // The duration the area is illuminated
-	var/range = 7 // The range in tiles of the flashbang
+	/// The duration the area is illuminated.
+	var/light_time = 0.2 SECONDS
+	/// The range in tiles of the flashbang.
+	var/range = 7
 
 /obj/item/grenade/flashbang/prime()
 	update_mob()
diff --git a/code/game/objects/items/weapons/grenades/frag.dm b/code/game/objects/items/weapons/grenades/frag.dm
index e93c923df9c7..ab6a3b8260bf 100644
--- a/code/game/objects/items/weapons/grenades/frag.dm
+++ b/code/game/objects/items/weapons/grenades/frag.dm
@@ -1,12 +1,14 @@
 #define DEFAULT_SHRAPNEL_RANGE 5
 
 /obj/item/grenade/frag
-	name = "frag grenade"
-	desc = "Fire in the hole."
+	name = "fragmentation grenade"
+	desc = "A grenade with a specially designed casing that will launch lethal fragments in all directions upon detonation. Fire in the hole!"
 	icon_state = "frag"
 	item_state = "grenade"
 	origin_tech = "materials=3;magnets=4"
+	/// How much shrapnel the grenade will launch.
 	var/shrapnel_contained = 20
+	/// The type of projectile that will fired.
 	var/embedded_type = /obj/item/projectile/bullet/shrapnel
 
 /obj/item/grenade/frag/prime()
diff --git a/code/game/objects/items/weapons/grenades/ghettobomb.dm b/code/game/objects/items/weapons/grenades/ghettobomb.dm
index 92310e2484c5..475a9e02aeec 100644
--- a/code/game/objects/items/weapons/grenades/ghettobomb.dm
+++ b/code/game/objects/items/weapons/grenades/ghettobomb.dm
@@ -2,7 +2,7 @@
 
 /obj/item/grenade/iedcasing
 	name = "improvised firebomb"
-	desc = "A weak, improvised incendiary device."
+	desc = "A sketchy improvised incendiary device."
 	w_class = WEIGHT_CLASS_SMALL
 	icon = 'icons/obj/grenade.dmi'
 	icon_state = "improvised_grenade"
@@ -14,8 +14,13 @@
 	active = FALSE
 	det_time = 5 SECONDS
 	display_timer = FALSE
+	modifiable_timer = FALSE
 	var/list/times
 
+/obj/item/grenade/iedcasing/examine(mob/user)
+	. = ..()
+	. += "<span class='warning'>You have no idea how long the fuze will last for until it explodes!</span>"
+
 /obj/item/grenade/iedcasing/Initialize(mapload)
 	. = ..()
 	overlays += "improvised_grenade_filled"
@@ -60,7 +65,3 @@
 	update_mob()
 	explosion(loc, -1, -1, 2, flame_range = 4)	// small explosion, plus a very large fireball.
 	qdel(src)
-
-/obj/item/grenade/iedcasing/examine(mob/user)
-	. = ..()
-	. += "You can't tell when it will explode!"
diff --git a/code/game/objects/items/weapons/grenades/grenade.dm b/code/game/objects/items/weapons/grenades/grenade.dm
index b76df931a0b4..b2e0fee35fdd 100644
--- a/code/game/objects/items/weapons/grenades/grenade.dm
+++ b/code/game/objects/items/weapons/grenades/grenade.dm
@@ -1,6 +1,6 @@
 /obj/item/grenade
 	name = "grenade"
-	desc = "A hand held grenade, with an adjustable timer."
+	desc = "A hand held grenade with an adjustable timer."
 	w_class = WEIGHT_CLASS_SMALL
 	icon = 'icons/obj/grenade.dmi'
 	icon_state = "grenade"
@@ -11,9 +11,29 @@
 	slot_flags = SLOT_FLAG_BELT
 	resistance_flags = FLAMMABLE
 	max_integrity = 40
+	/// Has the pin been pulled?
 	var/active = FALSE
-	var/det_time = 50
+	/// Time between the pin being pulled and detonation.
+	var/det_time = 5 SECONDS
+	/// Does the grenade show the fuze's time setting on examine?
 	var/display_timer = TRUE
+	/// Can the grenade's fuze time be changed?
+	var/modifiable_timer = TRUE
+
+/obj/item/grenade/examine(mob/user)
+	. = ..()
+	if(!display_timer)
+		return
+
+	if(det_time > 1)
+		. += "<span class='notice'>The fuze is set to [det_time / 10] second\s.</span>"
+	else
+		. += "<span class='warning'>[src] is set for instant detonation.</span>"
+	
+	if(modifiable_timer)
+		. += "<span class='notice'>Use a screwdriver to modify the time on the fuze.</span>"
+	else
+		. += "<span class='notice'>The fuze's time cannot be modified.</span>"
 
 /obj/item/grenade/deconstruct(disassembled = TRUE)
 	if(!disassembled)
@@ -31,54 +51,30 @@
 			if(user)
 				user.drop_item()
 			prime()
-		return 0
-	return 1
-
-
-/*/obj/item/grenade/afterattack(atom/target as mob|obj|turf|area, mob/user as mob)
-	if(istype(target, /obj/item/storage)) return ..() // Trying to put it in a full container
-	if(istype(target, /obj/item/gun/grenadelauncher)) return ..()
-	if((user.is_in_active_hand(src)) && (!active) && (clown_check(user)) && target.loc != src.loc)
-		to_chat(user, "<span class='warning'>You prime the [name]! [det_time/10] seconds!</span>")
-		active = TRUE
-		icon_state = initial(icon_state) + "_active"
-		playsound(loc, 'sound/weapons/armbomb.ogg', 75, TRUE, -3)
-		spawn(det_time)
-			prime()
-			return
-		user.dir = get_dir(user, target)
-		user.drop_item()
-		var/t = (isturf(target) ? target : target.loc)
-		walk_towards(src, t, 3)
-	return*/
-
-
-/obj/item/grenade/examine(mob/user)
-	. = ..()
-	if(display_timer)
-		if(det_time > 1)
-			. += "The timer is set to [det_time/10] second\s."
-		else
-			. += "[src] is set for instant detonation."
+		return FALSE
+	return TRUE
 
 /obj/item/grenade/attack_self(mob/user as mob)
-	if(!active)
-		if(clown_check(user))
-			to_chat(user, "<span class='warning'>You prime [src]! [det_time/10] seconds!</span>")
-			active = TRUE
-			icon_state = initial(icon_state) + "_active"
-			add_fingerprint(user)
-			var/turf/bombturf = get_turf(src)
-			var/area/A = get_area(bombturf)
-			message_admins("[key_name_admin(usr)] has primed a [name] for detonation at <A href='byond://?_src_=holder;adminplayerobservecoodjump=1;X=[bombturf.x];Y=[bombturf.y];Z=[bombturf.z]'>[A.name] (JMP)</a>")
-			log_game("[key_name(usr)] has primed a [name] for detonation at [A.name] ([bombturf.x],[bombturf.y],[bombturf.z])")
-			investigate_log("[key_name(usr)] has primed a [name] for detonation at [A.name] ([bombturf.x],[bombturf.y],[bombturf.z])", INVESTIGATE_BOMB)
-			add_attack_logs(user, src, "has primed for detonation", ATKLOG_FEW)
-			if(iscarbon(user))
-				var/mob/living/carbon/C = user
-				C.throw_mode_on()
-			spawn(det_time)
-				prime()
+	if(active)
+		return
+	if(!clown_check(user))
+		return
+
+	to_chat(user, "<span class='danger'>You prime [src]! [det_time / 10] seconds!</span>")
+	active = TRUE
+	icon_state = initial(icon_state) + "_active"
+	add_fingerprint(user)
+	var/turf/bombturf = get_turf(src)
+	var/area/A = get_area(bombturf)
+	message_admins("[key_name_admin(user)] has primed a [name] for detonation at <a href='byond://?_src_=holder;adminplayerobservecoodjump=1;X=[bombturf.x];Y=[bombturf.y];Z=[bombturf.z]'>[A.name] (JMP)</a>")
+	log_game("[key_name(user)] has primed a [name] for detonation at [A.name] ([bombturf.x],[bombturf.y],[bombturf.z])")
+	investigate_log("[key_name(user)] has primed a [name] for detonation at [A.name] ([bombturf.x],[bombturf.y],[bombturf.z])", INVESTIGATE_BOMB)
+	add_attack_logs(user, src, "has primed for detonation", ATKLOG_FEW)
+	if(iscarbon(user))
+		var/mob/living/carbon/C = user
+		C.throw_mode_on()
+	spawn(det_time)
+		prime()
 
 /obj/item/grenade/proc/prime()
 	return
@@ -89,19 +85,22 @@
 		M.unEquip(src)
 
 /obj/item/grenade/screwdriver_act(mob/living/user, obj/item/I)
+	if(!modifiable_timer)
+		return
+
 	switch(det_time)
-		if(1)
-			det_time = 10
+		if(1 DECISECONDS)
+			det_time = 1 SECONDS
 			to_chat(user, "<span class='notice'>You set [src] for 1 second detonation time.</span>")
-		if(10)
-			det_time = 30
+		if(1 SECONDS)
+			det_time = 3 SECONDS
 			to_chat(user, "<span class='notice'>You set [src] for 3 second detonation time.</span>")
-		if(30)
-			det_time = 50
+		if(3 SECONDS)
+			det_time = 5 SECONDS
 			to_chat(user, "<span class='notice'>You set [src] for 5 second detonation time.</span>")
-		if(50)
-			det_time = 1
-			to_chat(user, "<span class='notice'>You set [src] for instant detonation.</span>")
+		if(5 SECONDS)
+			det_time = 1 DECISECONDS
+			to_chat(user, "<span class='warning'>You set [src] for instant detonation.</span>")
 	add_fingerprint(user)
 	return TRUE
 
diff --git a/code/game/objects/items/weapons/grenades/smokebomb.dm b/code/game/objects/items/weapons/grenades/smokebomb.dm
index 854b921648b0..49908095d142 100644
--- a/code/game/objects/items/weapons/grenades/smokebomb.dm
+++ b/code/game/objects/items/weapons/grenades/smokebomb.dm
@@ -1,9 +1,10 @@
 /obj/item/grenade/smokebomb
-	desc = "It is set to detonate in 2 seconds."
 	name = "smoke bomb"
+	desc = "A grenade filled with chemical agents that will turn into a dense smoke when detonated, making it impossible to see through without specialised optics."
 	icon = 'icons/obj/grenade.dmi'
 	icon_state = "smoke"
-	det_time = 20
+	det_time = 2 SECONDS
+	modifiable_timer = FALSE
 	item_state = "smoke"
 	slot_flags = SLOT_FLAG_BELT
 	var/datum/effect_system/smoke_spread/bad/smoke
diff --git a/code/game/objects/items/weapons/grenades/spawnergrenade.dm b/code/game/objects/items/weapons/grenades/spawnergrenade.dm
index 33a251640981..14973b096b2a 100644
--- a/code/game/objects/items/weapons/grenades/spawnergrenade.dm
+++ b/code/game/objects/items/weapons/grenades/spawnergrenade.dm
@@ -1,6 +1,6 @@
 /obj/item/grenade/spawnergrenade
-	desc = "It is set to detonate in 5 seconds. It will unleash unleash an unspecified anomaly into the vicinity."
 	name = "delivery grenade"
+	desc = "Upon detonation, this will unleash an unspecified anomaly into the vicinity."
 	icon = 'icons/obj/grenade.dmi'
 	icon_state = "delivery"
 	item_state = "grenade"
@@ -33,20 +33,24 @@
 	return
 
 /obj/item/grenade/spawnergrenade/manhacks
-	name = "manhack delivery grenade"
+	name = "viscerator delivery grenade"
+	desc = "This grenade contains 5 viscerators, tiny flying drones with lethally sharp blades. Upon detonation, they will be deployed and begin searching the area for targets."
 	spawner_type = /mob/living/simple_animal/hostile/viscerator
 	deliveryamt = 5
 	origin_tech = "materials=3;magnets=4;syndicate=3"
 
 /obj/item/grenade/spawnergrenade/spesscarp
 	name = "carp delivery grenade"
+	desc = "This grenade contains 5 dehydrated space carp in a similar manner to dehydrated monkeys, which, upon detonation, \
+	will be rehydrated by a small reservoir of water contained within the grenade. These space carp will then attack anything in sight."
 	spawner_type = /mob/living/simple_animal/hostile/carp
 	deliveryamt = 5
 	origin_tech = "materials=3;magnets=4;syndicate=3"
 
 /obj/item/grenade/spawnergrenade/feral_cats
 	name = "feral cat delivery grenade"
-	desc = "This grenade contains 5 dehydrated feral cats in a similar manner to dehydrated monkeys, which, upon detonation, will be rehydrated by a small reservoir of water contained within the grenade. These cats will then attack anything in sight."
+	desc = "This grenade contains 5 dehydrated feral cats in a similar manner to dehydrated monkeys, which, upon detonation, \
+	will be rehydrated by a small reservoir of water contained within the grenade. These cats will then attack anything in sight."
 	spawner_type = /mob/living/simple_animal/hostile/feral_cat
 	deliveryamt = 5
 	origin_tech = "materials=3;magnets=4;syndicate=3"
diff --git a/code/game/objects/items/weapons/grenades/syndieminibomb.dm b/code/game/objects/items/weapons/grenades/syndieminibomb.dm
index e2a779b9374a..3525dfcc99df 100644
--- a/code/game/objects/items/weapons/grenades/syndieminibomb.dm
+++ b/code/game/objects/items/weapons/grenades/syndieminibomb.dm
@@ -1,6 +1,6 @@
 /obj/item/grenade/syndieminibomb
-	name = "syndicate minibomb"
-	desc = "A syndicate manufactured explosive used to sow destruction and chaos."
+	name = "\improper Syndicate minibomb"
+	desc = "A Syndicate-manufactured high-explosive grenade used to sow destruction and chaos."
 	icon = 'icons/obj/grenade.dmi'
 	icon_state = "syndicate"
 	item_state = "grenade"