LBV Expander Kit

LBV Expander Kit is the ultimate modular upgrade for the 34A Split Rig Chest Rig Chassis, delivering expanded storage capacity and versatility without compromising mobility. Designed specifically to add significant "real estate" to your existing setup, this kit turns your lightweight chest rig into a capable, full-featured Load Bearing Vest (LBV) ideal for sustainment operations, extended patrols, and missions requiring extra gear.

Key Features:

• Roll-Top Butt Pack – Expandable main compartment accommodates larger items with ease. Features a DWR (Durable Water Repellent) finish for weather resistance (not fully waterproof – Spiritus recommends adding a dry bag liner for complete protection). Includes a convenient zippered front pocket with tie-down loops to secure sensitive items.
• Padded X Harness System – Provides comfortable, distributed weight support and replaces the standard Back Strap and Fat Straps on your 34A rig.
• Sternum Strap – Enhances stability and load management for all-day comfort.
• Full MOLLE Backing – Allows attachment of additional pouches, accessories, or gear for maximum customization.
• Removable Harness & Side Straps – Quickly detach to use the butt pack as a standalone module on other platforms. When not needed, side buckle straps stow neatly behind the MOLLE via integrated vertical slit openings.
• Quick-Change Modularity – Easily attach or detach the entire kit for rapid configuration switches. Keep your Fat Straps and Back Straps handy to flip between a streamlined front-only chest rig (perfect for vehicle ops) and a full LBV setup in minutes.