Merge pull request #21554 from ChangelingRain/infinitygun

Fixes infinite cooldown KAs

code/modules/projectiles/guns/energy/kinetic_accelerator.dm

@@ -226,7 +226,7 @@
 
 /obj/item/borg/upgrade/modkit/attackby(obj/item/A, mob/user)
 	if(istype(A, /obj/item/weapon/gun/energy/kinetic_accelerator) && !issilicon(user))
-		install(A)
+		install(A, user)
 	else
 		..()
 
@@ -298,7 +298,8 @@
 	modifier = 2.5
 
 /obj/item/borg/upgrade/modkit/cooldown/install(obj/item/weapon/gun/energy/kinetic_accelerator/KA, mob/user)
-	if(..())
+	. = ..()
+	if(.)
 		KA.overheat_time -= modifier
 
 /obj/item/borg/upgrade/modkit/cooldown/uninstall(obj/item/weapon/gun/energy/kinetic_accelerator/KA)
@@ -355,9 +356,11 @@
 	name = "modified trigger guard"
 	desc = "Allows creatures normally incapable of firing guns to operate the weapon when installed."
 	cost = 20
+	denied_type = /obj/item/borg/upgrade/modkit/trigger_guard
 
 /obj/item/borg/upgrade/modkit/trigger_guard/install(obj/item/weapon/gun/energy/kinetic_accelerator/KA, mob/user)
-	if(..())
+	. = ..()
+	if(.)
 		KA.trigger_guard = TRIGGER_GUARD_ALLOW_ALL
 
 /obj/item/borg/upgrade/modkit/trigger_guard/uninstall(obj/item/weapon/gun/energy/kinetic_accelerator/KA)
@@ -375,7 +378,8 @@
 	var/chassis_icon = "kineticgun_u"
 
 /obj/item/borg/upgrade/modkit/chassis_mod/install(obj/item/weapon/gun/energy/kinetic_accelerator/KA, mob/user)
-	if(..())
+	. = ..()
+	if(.)
 		KA.icon_state = chassis_icon
 
 /obj/item/borg/upgrade/modkit/chassis_mod/uninstall(obj/item/weapon/gun/energy/kinetic_accelerator/KA)