restores the ability to attach suppressors

code/modules/projectiles/guns/projectile/automatic.dm

@@ -23,6 +23,9 @@
 	return
 
 /obj/item/weapon/gun/projectile/automatic/attackby(var/obj/item/A as obj, mob/user as mob)
+	. = ..()
+	if(.)
+		return
 	if(istype(A, /obj/item/ammo_box/magazine))
 		var/obj/item/ammo_box/magazine/AM = A
 		if(istype(AM, mag_type))
@@ -234,4 +237,4 @@
 	fire_sound = 'sound/weapons/Gunshot_smg.ogg'
 	can_suppress = 0
 	burst_size = 4
-	fire_delay = 1
+	fire_delay = 1