Lightweight Stock is a rare-tier weapon mods in Arc Raiders, the cooperative extraction shooter developed by Embark Studios. A rare stock attachment that reduces weapon weight and increases movement speed while aiming down sights. Perfect for mobile playstyles.

As a weapon mod blueprint, Lightweight Stock allows you to craft this attachment to customize your weapons. Weapon mods can significantly change how a weapon handles — improving accuracy, recoil control, damage, or magazine capacity. Having the right mods can give you a decisive advantage in firefights.

Rare blueprints are significantly harder to find and often require players to explore specific map locations, complete quest lines, or open high-tier containers. The weapons, mods, and consumables they unlock are substantially more powerful and can give you a real edge in combat. Collecting all rare blueprints is a meaningful milestone for any Arc Raiders player.

Lightweight Stock is one of 80 blueprints in our complete Arc Raiders database. Use Arc Blueprint Tracker to browse all blueprints, filter by category or rarity, and track your collection progress toward 100% completion. Whether you are hunting for legendary weapons or filling in your common items, our tracker helps you stay organized.