Signal & Steel MOLLE Expansion Backpack – Tactical Plate Carrier Pack with Hydration Storage (7L)

The Signal & Steel MOLLE Expansion Backpack is a compact rear carrier pack designed to mount directly to plate carriers and MOLLE vests, giving you additional storage for hydration and mission gear without adding excessive bulk.

Built from durable 500D tactical nylon, this pack provides a lightweight yet rugged solution for airsoft players who need extra capacity during longer games or milsim events. The pack includes internal storage compartments with enough room for a hydration bladder up to 3L, along with additional space for tools, batteries, gloves, or field essentials.

The exterior features MOLLE webbing on the front and sides, allowing you to attach extra pouches or accessories depending on your loadout needs.

A unique feature of this pack is the integrated helmet storage compartment, which allows you to fold and stow most tactical helmets when not in use. This makes it useful for staging areas, travel between objectives, or storing gear between matches.

With a total capacity of approximately 7 liters, the Signal & Steel Expansion Backpack provides practical storage while maintaining a streamlined profile that pairs well with modern plate carrier setups.

Key Features

• Compact 7L tactical expansion backpack

• Compatible with MOLLE plate carriers and tactical vests

• Internal compartments for organization

• Hydration-compatible storage for up to 3L bladder

• Helmet storage compartment for tactical helmets

• Front and side MOLLE webbing for additional pouches

• Durable 500D nylon construction

• Built for airsoft, milsim, and outdoor tactical use

Specifications

• Capacity: ~7 Liters

• Hydration compatibility: Up to 3L bladder

• Weight: ~0.4 kg

• Material: 500D tactical nylon

• Mounting: MOLLE compatible

Ideal For

• Hydration storage during airsoft games

• Plate carrier backpack setups

• Milsim and long-duration events

• Carrying extra gear and accessories

• Tactical helmet storage