Blades mounted on the forearm, usually via a wrist strap, vambrace, as part of a mechanical arm (such as the mantis blades from cyberpunk 2077), or as natural weapons as part of a species's anatomy. The size, shape, orientation, and angle varies. These blades often comes in pairs (one for each arm) but not always.

Variants

• Short-bladed (dagger-like)
• Long-bladed (sword-like)
• Single-edged / Curved blade
• Double-edged / Straight blade
• Vertically angled / Forward facing
• Horizontally angled / Forward facing (katar-like)
• Elbow blades (Backward facing)
• wrist-mounted claws.
• Underhand blade (popular among assassins)
• Energy blade
• Bone blade