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British Army Medium Weight Winter Sleeping Bag

Original price £39.99 - Original price £49.99
Original price
£39.99 - £49.99
Current price £39.99

This British army sleeping bag is the current issue army sleeping bag for the british military. It is part of the new British army modular military sleep system and a direct copy of the Carinthia Defence 4 sleeping bag. This is a great 3 season sleeping bag and a sleep bag for winter.  

This can be used on its own or in combination with the lightweight modular bag to give you a temperature comfort rating of around -20C. If you are looking to purchase the full military modular sleep system then you can do so HERE

Features Include:

  • British Army Issue Combat Modular Bag
  • Forms part of 3 bag modular system currently issued to the British army
  • Medium Weight bag is 3 season
  • Combines with "Light" bag and inner liner for extreme cold conditions
  • On its own the Medium weight bag is a great all round bag
  • Inner mesh pockets for valuables 
  • Outer shell is ripstop nylon
  • Hi-Tec filler to retain body warmth
  • Comfort rating of around. -10C
  • Compression sack sold separately 
  • Grade 1 - Used condition
  • Super Grade - Like New 

Dimensions and Weight:

  • Medium weight: 2kg
  • Medium dimensions: 205 x 76 cm
  • Large Weight:2.2kg
  • Large dimensions: 212 x 81 cm
  • Pack size approx: 45 x 25 cm

Check out more of our winter sleeping bag here at GoArmy today.

United Kingdom 

Under 2kg:
Standard Delivery (2-4 days) - £3.50
Express Delivery (1-2 days) - £4.50
Next Day - £4.99

Over 2kg:
Next Day - £4.99

Saturday Delivery:
Saturday Delivery - £6.99
Saturday Before 1pm - £9.99

Rest of the world
UPS or Fed-Ex - Calculated on checkout 

Next Day Delivery
Orders must be made before 1pm for next day delivery.
Orders made after 1pm on Thursday will arrive on Monday (unless Saturday delivery chosen)
Orders made after 1pm on Friday will be shipped on Monday. 

For more information on shipping please see our shipping policy HERE


To obtain a return label if you live on the UK mainland please CLICK HERE. If you are unable to generate a returns label please email us at Please check your spam folder for replies from us. 

If returning an item for a refund we charge £3 for the return label which is taken from the refund amount. 

If you want to exchange your order please send the item/items back for a refund and make a new order for the items you would like

We accept returns / exchanges from 30 days of the order date. Items must be in original condition to be accepted for returns. A refund is given within 1-2 days of receiving the returned item. 

International order must arrange thier own return postage which is non-refundable. 

Mailing Bags

  • Small items - Paper mailing bags
  • Larger items - Biodegradable sugarcane bags 
  • Very large items - Cardboard boxes

Packing Tape

  • Small items - Gum tape / Kraft Tape (biodegradable)
  • Larger items - Kraft Tape (biodegradable)

If you buy any of our army surplus products then all the packaging will be plastic free. With army surplus you minimise the environmental impact of producing new clothes and reduce plastic waste. 

With our new items there may be plastic packing which comes from the supplier themselves. 

Although we are not totally plastic free (but pretty close) our goal is to reduce our plastic waste as much as possible and will continue to do so going into the future.

Customer Reviews

Based on 20 reviews
Ross Parker
Very impressed by bag and GoArmy

Next day delivery was fantastic. Quality of product received was excellent. As new. Very warm bag, too warm for indoors.

Jane Bowles
GoArmy Does it Again

GoArmy's service is second to none. The example of the Modular Winter Bag is immaculate, it could be new except for the name on the tag. I am currently using it at home. The oil central heating has failed. Rather than using the draughty quilt this bag is toasty warm.


The best quality military surplus kit I've ever bought...& I've bought a lot over the last 20+ years. Immaculate condition, no smells to deal with, just perfect! They even threw in a free liner & bungee set for free. Will definitely be back for more!

Simon Lees
Medium modular sleeping bag

Superb and fast service from goarmy. Bag is in very good condition and fits like a glove. Can well recommend.

Adrian Knox

Great product. Looking forward to the compression sack being in stock soon