Shieldwires are a type of ammunition compatible with certain Tripcasters in Horizon Forbidden West. When deployed, it generates a shield that blocks all projectile attacks, but not physical ones. Explosive projectiles will also be stopped, but the blast will still affect anyone behind the shield if they're close enough. After taking 600 points of damage, the shield explodes, dealing high to very high Explosive damage to anything nearby. Unlike other explosives, this does not affect Aloy.
Unlike other ammo or traps that deal Explosive damage, Shieldwires don't require Blastpaste.