MT Modular Sleep System 4-Piece Tactical Sleeping Bag Set with Front-Zip Design and Vacuum Compression Sack USGI MSS Style, Upgraded for Outdoor, Survival & Field Use Multi-Terrain

Complete 4-Piece Modular Sleep System – USGI Spec Build. Includes Patrol Bag, Intermediate Cold Weather Bag, Waterproof Bivy Cover, and Compression Sack – all built to match U.S. military MSS standards, fully modular and field-tested. Upgraded Front-Zip Design for Faster Entry/Exit. All bags are redesigned with a centerline front zipper, replacing the original side-entry structure. Offers easier access, better ventilation control, and improved emergency egress in tactical scenarios. Vacuum Compression Sack – Waterproof & Space-Saving. The traditional compression sack is replaced with an MT vacuum-seal version featuring an air-release valve, waterproof 70D TPU build, and 66% space reduction capability. Lightweight, floatable, and rugged. Fully Modular – Combine or Use Individually. The system works together in cold weather or can be used individually depending on conditions. Layer the Patrol + Intermediate + Bivy for sub-zero survival, or take one for lighter climates. Tactical Colors & Materials – Ready for Deployment. Made with military-grade materials in authentic tactical tones. Compatible with USGI sleep system pouches, rucksacks, and accessories. Ideal for survivalists, soldiers, and serious outdoorsmen.