Part Number: K1051-4
Availability: In Stock

Description

U.S. Military ACU (UCP) 4-Piece Modular Sleep System (MSS) – Used

Engineered for maximum versatility in the field, the ACU Modular Sleep System (MSS) is the definitive all-weather survival solution. This 4-piece configuration utilizes a sophisticated layered approach, allowing operators to adapt their sleep environment to temperatures ranging from mild summer nights to extreme sub-zero conditions. When all components are integrated, the system is designed to provide survival protection in temperatures as low as -30°F.

Constructed from water-resistant Ripstop Nylon and high-loft synthetic insulation, this system is built to withstand the rigors of combat and prolonged field use. The outer GORE-TEX® layer provides a completely waterproof and windproof shield, ensuring you stay dry and warm even in saturated environments without a tent. This NSN 8465-01-547-2757 (System) is the premier choice for cold-weather hikers, survivalists, and military collectors who demand a "no-fail" professional sleep system.


System Components & Individual NSNs

  1. Foliage Green Patrol Bag (NSN 8465-01-547-2694): Rated for 30°F to 50°F. Features a lightweight, water-resistant shell and an adjustable cinch hood.
  2. Urban Gray Intermediate Cold Weather Bag (NSN 8465-01-547-2697): Rated for 30°F to 0°F. Features reinforced insulation in the foot box and a non-locking slide fastener for rapid egress.
  3. ACU Digital GORE-TEX® Bivy Cover (NSN 8465-01-547-2644): The waterproof, breathable outer layer that protects the inner bags from rain, snow, and wind.
  4. Large Foliage Green Compression Sack (NSN 8465-01-547-2670): Features 9 high-tension straps to compress the entire system into a compact, rucksack-ready size.

Technical Specifications & Features

  • Full System NSN: 8465-01-547-2757
  • Condition: Used (Inspected for structural integrity; all heavy-duty zippers, snaps, and compression straps are fully functional; may show minor service wear or unit markings typical of field-issued gear).
  • Temperature Rating: Survival rated to -30°F (when all components are used together with appropriate base layers).
  • Materials: 100% Ripstop Nylon (Bags), 3-Layer GORE-TEX® (Bivy), and Synthetic Polyester Fill.
  • Design Features:
    • Integrated Snap System: Heavy-duty snaps along the zippers allow the bags and bivy to be joined into one cohesive unit, preventing shifting or twisting during sleep.
    • Oversized Heavy-Duty Zippers: Designed for smooth operation and rapid one-handed release in high-stress environments.
    • Vapor Permeability: The GORE-TEX® bivy allows internal body moisture (sweat) to escape while blocking external water from entering.
    • Mummy Style Foot Box: Anatomically shaped to trap heat and allow for natural foot movement.
  • Authenticity: Genuine U.S. Military Surplus / Manufactured by authorized government contractors such as Tennier Industries.

 

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