Name: Modular Sleep System - ACU
Brand: Forest City Supply
SKU: MSS-ACU-VER
Price: 249.99 USD
Availability: OutOfStock

Fast Shipping

Secure Checkout

Fast & Easy Returns

Trusted by Pros

$174.99

Shipping calculated at checkout.

Condition

New

Very Good

Good

30 DAY RISK FREE RETURNS & SECURE CHECKOUT

$9.99 Skip The Line Shipping Available

Quantity

NOTIFY ME WHEN IN STOCK

From Forest City Supply in Cleveland, Ohio, comes the authentic and complete 5-part U.S. Military issue Improved Modular Sleep System (IMSS) in the ACU / UCP digital camouflage pattern.

This is the genuine surplus system (NSN: 8465-01-547-2757) trusted by the U.S. Army to provide protection in climates ranging from temperate to extreme cold. The genius of the system is its layers, which can be used individually or combined to cover virtually any temperature.

The Complete 5-Part System Includes:

1. UCP GORE-TEX Bivy Cover

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.

NSN: 8465-01-547-2644
Dimensions: Approx. 80" x 32"
Weight: Approx. 2.0 lbs

2. Patrol Sleeping Bag (Green)

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.

NSN: 8465-01-547-2706
Temperature Rating: 30°F to 50°F
Dimensions: Approx. 90" x 36"
Weight: Approx. 2.75 lbs

3. Intermediate Cold Weather Sleeping Bag (Black)

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.

NSN: 8465-01-547-2694
Temperature Rating: -10°F to 30°F
Dimensions: Approx. 85" x 35"
Weight: Approx. 4.0 lbs

4. Small & Large Compression Stuff Sacks

Two stuff sacks are included. The smaller sack (NSN: 8465-01-547-2656) holds one bag, and the larger sack (NSN: 8465-01-547-2670) is designed to hold the entire system compressed together for transport.

System Specifications:

Total System Weight: Approx. 10 lbs
Combined Temperature Rating: Down to -30°F (and as low as -50°F with proper clothing layers)

Condition: Photos are for listing purposes only. This is genuine military surplus; condition will be as described in the listing specifics. All components are fully functional.

Trust Forest City Supply for your authentic American-made military gear. This item ships directly from our warehouse in Cleveland, Ohio.

Frequently asked questions

What are my shipping options?

Standard Priority ships in 2–3 business days (about 4–6 days total). Add Skip the Line at checkout for 1–2 day processing (about 3–5 days total).

How do returns work?

Most items can be returned within 7 days of delivery in original, unused condition. Some vendor items carry a restocking fee, which is disclosed before you ship anything back. Start every return through our Returns Portal — approval is required first.

Can I track my order?

Yes — you’ll get a tracking link by email as soon as your order ships. Orders with multiple items sometimes ship in separate packages, each with its own tracking number; allow 24–72 hours after your shipping confirmation for the first carrier scan.

Still have a question?

Use the “Ask a question” link on this page or email our team — we’re first responders too and we answer fast.

All Items are Shipped using USPS at this time; unless international orders than UPS.

Available USA Shipping options:

Processing times

Standard Processing: 3-5 days processing USPS

Skip The Line Processing: 1-2 day processing USPS

Available International (non-USA):

Under 1lbs: $40 UPS

1-lbs $70 UPS

[{"id":51637631254759,"title":"New","option1":"New","option2":null,"option3":null,"sku":"MSS-ACU-NEW","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Modular Sleep System - ACU - New","public_title":"New","options":["New"],"price":24999,"weight":10433,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51637631287527,"title":"Very Good","option1":"Very Good","option2":null,"option3":null,"sku":"MSS-ACU-VER","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Modular Sleep System - ACU - Very Good","public_title":"Very Good","options":["Very Good"],"price":17499,"weight":10433,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51637631320295,"title":"Good","option1":"Good","option2":null,"option3":null,"sku":"MSS-ACU-GOO","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Modular Sleep System - ACU - Good","public_title":"Good","options":["Good"],"price":14999,"weight":10433,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]