USMC GI Dry Compression MACS Sack (56L Waterproof Liner) - OD, Used Great Condition

This USMC GI Dry Compression MACS Sack is built to keep your gear dry, secure, and ready for action. Originally designed as the waterproof liner for the USMC ILBE and Assault packs, this rugged 56-liter bag is made from tough 210D Oxford nylon with a protective PU coating. The roll-top DrySeal closure locks out water, while the built-in air-purge valve lets you squeeze out excess air to save space—or keep air inside for flotation.

Flip it inside-out and you’ll find a high-visibility orange interior, perfect for use as a rescue signal in emergencies. Measuring approximately 36″ × 20″ and carrying NSN 8465-01-560-6727, this is genuine U.S. military surplus—battle-tested and ready for your next outdoor, boating, or field mission.

Key Features:

• 210D Oxford nylon with PU coating

• Roll-top DrySeal closure

• Air-purge valve for compression or flotation

• Reversible fluorescent orange interior

• Approx. 36″ × 20″

• NSN 8465-01-560-6727

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