Forest City Supply
Modular Sleep System - ACU
Modular Sleep System - ACU
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U.S. Military Improved Modular Sleep System (IMSS) | 5-Part UCP Set
Prepare for any environment with the complete, genuine U.S. Military Improved Modular Sleep System (IMSS). Sourced by Forest City Supply, this is the authentic 5-part set (System NSN: 8465-01-547-2757) trusted by the U.S. Army to provide comfort and protection in temperatures ranging from warm summer nights to extreme arctic cold.
The genius of the MSS lies in its layers. By using the components separately or combining them, you can create the perfect sleep system for any condition. Use the green Patrol Bag for cool nights, the black Intermediate Bag for serious cold, or snap them both together inside the waterproof GORE-TEX bivy cover for a system rated to protect you in sub-zero temperatures. This isn't just a sleeping bag; it's a comprehensive, all-weather shelter solution.
Whether you're a year-round camper, a serious backpacker, or a prepper building a reliable bug-out kit, this is the ultimate sleep system. Stop buying a new sleeping bag for every season and invest in the one system that does it all.
The Complete 5-Part System Includes:
UCP GORE-TEX Bivy Cover
- NSN: 8465-01-547-2644
- The waterproof, windproof, and breathable outer shell. Can be used alone as a minimalist shelter in warmer weather. It features a durable zipper and snaps to secure the inner sleeping bags.
Patrol Sleeping Bag (Green)
- NSN: 8465-01-547-2706
- The lighter-weight of the two bags, rated for temperatures from 30°F to 50°F. Perfect for spring, summer, and fall camping on its own.
Intermediate Cold Weather Sleeping Bag (Black)
- NSN: 8465-01-547-2694
- The heavy-duty inner bag, rated for temperatures from 30°F down to -10°F. This is your go-to bag for serious cold weather conditions.
Small Compression Stuff Sack (Foliage Green)
- NSN: 8465-01-547-2656
- Designed to hold either the Patrol or Intermediate bag individually for more compact packing.
Large Compression Stuff Sack (Foliage Green)
- NSN: 8465-01-547-2670
- This larger sack is designed to hold the entire system (Bivy Cover, Patrol Bag, and Intermediate Bag) compressed together for transport.
System Specifications:
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Total System Weight: Approx. 10 lbs
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Patrol Bag Weight: Approx. 2.75 lbs
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Intermediate Bag Weight: Approx. 4 lbs
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Bivy Cover Weight: Approx. 2 lbs
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Temperature Ratings:
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Patrol Bag: 30°F to 50°F
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Intermediate Bag: -10°F to 30°F
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Combined System: Down to -30°F (and as low as -50°F with proper clothing layers)
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Trust Forest City Supply to deliver this complete, genuine, and field-proven American sleep system right to your door.
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Let customers speak for us
from 70 reviewsBought a lot of surplus from here. Excellent customer service and staff is fantastic. The bargin bins are a really cool feature of the store.
Hydration Carrier - OCP - Used - w/ NEW Bladder

US Military Surplus Backpack ACU MOLLE II 3-Day Assault Pack USGI

I ordered the grade 1 - like new. I think it is new as it looks like it has never been issued or used. It's a great pack for short hikes and makes a nice overnight travel bag too. I am very satisfied with the item, the price, and the speed of delivery!

US Military Surplus Backpack ACU MOLLE II 3-Day Assault Pack USGI

Fast service & very reasonable pricing.

I bought an U.S. Military Surplus Medium Field Pack Rucksack MOLLE II Complete - OCP/Multicam - Very Good. Well, I'll tell you what, this item is NEW. How I know it was new? I had to assemble it, that's how. Not a tear or a scuff of any kind on this thing. Everything to assemble it was in the rucksack. All I had to do was go search how to assemble it on the internet. It was simple to put together. And the price was fantastic. I ordered it on Saturday July 5th and got it on Tuesday July 8th. I will go to this seller again. I am well satisfied. Thank you.
I love my PCP Hydration Carrier from Forest City Supply. If you need military gear, give them a look before you search anywhere else.

Great place I would highly recommend.

Better than described. Great value and condition for the money. A great family to do business with.

Exactly what I was looking for at an unbeatable price.

We bought this tarp thinking it would be pretty worn yet still useful especially at the bargain price. Nope, arrived looking closer to a new item. We are very very happy with all the purchased items from Forest City.
