Fix for issue #2882 in Baystation12/master (CR-20 not updating sprite correctly when unloaded by in-hand click).

code/modules/projectiles/guns/projectile.dm

@@ -92,6 +92,7 @@
 				loaded -= AC
 			AM.loc = get_turf(src)
 			empty_mag = null
+			update_icon()
 			user << "\blue You unload magazine from \the [src]!"
 	else
 		user << "\red Nothing loaded in \the [src]!"