Arrows

"Crossbow bolts are not too complex to make, but due to their considerable size require quite a lot of materials."

- Metro Exodus in-game description

Arrows or Bolts are large steel needles made inside the Moscow Metro for use in makeshift weaponry, primarily the Helsing.

Overview
Helsing bolts are rare and very expensive; one Helsing bolt from a weapons vendor costs seven MGRs, while selling one will only net one MGR per bolt. They deal a lot damage, however, only taking one bolt to dispense of any human foe and many mutants when the Helsing is fully pressurized. Purchasing too many bolts should be avoided if possible as they are retrievable, but a few will likely have to be purchased since they are somewhat rare in the Metro.

In Metro 2033, arrows see much more frequent use as Helsings can be found earlier and more frequently. In Metro: Last Light, however, the weapon is much less common, so arrows are utilized less. One advantage arrows in Metro: Last Light have is that they have a distinct fluorescent orange tip, making them easy to spot in the dark Metro tunnels.

Arrows, now called bolts, return in Metro Exodus. They are first found at the beginning of thw Taiga level. 10-20 bolts can be collected in the starting area where Artyom first finds the Helsing. When he retrieves his backpack back later in the level, bolts can be crafted for 10 mechanical materials a piece. Without upgrades, Artyom is able to carry up to 32 bolts. The rear tip of the bolts are painted with a luminescent green material to aid in retrieving them. This can be helpful when using the Helsing in low light conditions.

Trivia

 * The HUD icon for arrows has barbs, but the in-game model does not, possibly to make them easier to retrieve from bodies. The barbs on the icon are probably present to easily distinguish what type of ammunition it is, as otherwise, it would just be a plain metal rod.
 * Although they can be retrieved, one should not fully rely on this, as they can be lost if they are fired into scenery or if they hit ammunition pouches that fall off the body. Carrying more than needed is advised.
 * In Metro 2033, this type of ammo is called Arrows. However, in Metro: Last Light and Metro Exodus, their in-game name is Bolts, which is a more fitting name, as the Helsing is more similar to a crossbow than to a regular bow (in Metro Exodus, most configurations of the Helsing are actually crossbows) and the bolts are fairly short.

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