Military Modular Sleep System - My High Quality, All-Season Sleeping Bag - HighCarbonSteel Love 

I finally got a video showing how to put this system together. I watched three other videos on this subject and all the guy's did was bullshit what they did in the Military. I now know how to put this bag together. Thank you.

I have used mine for many years, bought three for my grandkids, and just gave mine to my sister so I get to buy a new one. I have used it in the winter in the Colorado Mountains under the stars at 5 degrees with several inches of snow and was very warm...until I got out. One of my grandkids used it during a rainstorm, again under the stars, and stayed perfectly dry. Do take the time to understand how to assemble and use the bag!

A few months ago I found the bivy at my local goodwill for about $15. I just went back today and got the green bag for $6. I didn't even know they worked together untill I started researching. Maybe one day I'll find the black one too!

The Bivy is the gem of the system. I bought a used one and pair it with everything from bag liners in the hot, humid summer nights, wool blankets, and nested Carinthia military bags as it gets colder. No snap in bags, but it still works well with any combination of bags or blankets. Great, succinct review Dave!

I used this system in Norway in 1999. It was down to -30 F, and I was never cold.

I've used mine in all 4 seasons for nearly 8 years. You did a great job of conveying just how modular this system is. Excellent review.

5 years after being published this video still rocks! I have used this system all over the world, in extreme places and weather and I still love it. The only thing I added was my poncho liner "woobee". If you don't have one of these and you expect to be sleeping in extreme conditions, it is worth every penny to get one, and in February of 2022, you will pay $700 for this set.

100$ for the whole system!! I can’t find any under 170$

Can you believe I found this in the trash? Someone from my command just threw this out. Is there an instruction on how to stow it in the compression bag?

For those of us who have had to deal with sub-zero temperatures this type of bed roll system has been used for ages and ages. It was common to take an extreme cold sleeping bag, stuff it with a mountain bag and wrap it up with a poncho. Good for whatever Mother Nature throws at you and I've been using this bed roll for the last 40 yrs. Both bags are feathers and down and wash up very easy. I would never stuff these in a bag, but roll them up lengthwise to surround the outside of a pack. Was able to replace the poncho with the new bivy I found at a garage sale for 5 bucks last spring. Just an oldster giving out a tip or two, it may work for you.....

I just got my first mmss. I bought it new in bag. Your video is the best at showing how to snap everything together. Thanks for the effort to make the best tutorial and gear review video online for this gear. Looking forward to lots of outdoor time.

I own one of these systems and love it. It doesn't pack down small and is heavy compared to the latest and greatest down bags, but it's warm and pretty much bomb proof. Great video, thanks for sharing.

I bet this video has helped a Lot of people for over five years. Very good content, no fluff and straight to the point.

I roved Europe lugging a two-man tent that I only used occasionally, although when I did it was really valuable. I wish I had this system instead. For really cold conditions, in addition to the patrol and immediate bags, I use a tight-fitting down bag I got at a yard sale for $1. (All it needed was cleaning up.) When it gets cold enough for that down bag, there are none of the moisture issues that trouble down, and that down compresses down incredibly well.

Just bought this 4pc system on offer up for 30 bucks deal of a lifetime

Great demo and very good communication skills. I’ve found MSS at great price online and your video was very helpful to asses if the MSS is good enough for my use.

I've been goos in my hammock down to 14°F with the black bag and gortex shell. I wish Arkansas would get colder than that

Great video Dave, just did a weekend this past Friday, used just the black bag and bivy, it got down to 24 degrees.....was toasty warm with no fire! Thanks for sharing.

Nice video really enjoyed it ,question is the bottom of the bivvy bag Gore-Tex as well.

Thanks for the demo Dave! I love this system! I have used this system down to 8 deg.F in my hammock. Great video!

Amazing video, Thank you And a thumbs up from me is your reward. Congratulations 👍

Great video review of this system. I’ve used the bivouac bag and patrol bag in a hammock down to 25 degrees Fahrenheit. I won’t say I was toasty when I woke up but I was warm enough to sleep all night. I found out that the temperature was much lower than predicted that morning.

I have one. My buddies sleep in tents. I prefer to sleep under the stars, on a cot. On several occasions I've woken up with frost on my bag & pillow, and all liquids left out are frozen. Sleeps nice and cozy, watching satellites, meteors and the Milky Way.

Probably the best sleep system for the money for sure. Pretty heavy though but still well worth the money! Great demonstration Dave!

That was, by far, the best look I've seen of the MMSS Dave. Thanks for sharing it with us.

I've had mine down way past 0 degrees. I got an extra jungle bag with the foot box cut so it will fit my hammock. This thing is bulletproof.

굳 good idea

I think it's warmer than the British 3 bag system. For Arctic sleeping a large bag fitting over the summer and fall bars would work to say 20 F. Me? I have a Western Mountaineering Megalite down 3 season 20 F. bag and an LL Bean -20 F. winter bag. Wearing extra clothing including down pants and light down jacket are good with either bag for another 15 F.lower temps. Remember, a double wall tent is goo for at least another 10 F. (with adequate ventilation, of course) TIP-> zip up your GTX shell and put it over the foot of yer bag for more warmth and to keep fros from the tent walls from melting into the foot of yer bag.. YOUR MATTRESS MUST BE ADEQUATE FOR THE TEMPERATURES. R3.5 FOR 3 SEASON, R5.8+ FOR WINTER. Learn what the R ratings mean for YOU. Everyone is different.

Hey ! I have the same system ! trying it out tonight. I had a odd question for ya, Your gloves.... I think I have the same ones and I haven't been able to find them again, they are so warm for not being a big glove. Does your have the Deer skin palm? I'd love to be able to find them again so I can order a few pairs. thanks ! Nice video !

What is the volume of the bag in liters?

I was hoping to see how the mmss gets packed into the compression bag, and attached to a rucksack.

Can not go wrong with the MMSS! I bought two for myself and my son from my local surplus store in Fresno,CA and got both brand new in the plastic bag for $180. So for anyone out there trying to get tough quality gear for a great price,please check out your local military surplus store! That's were I got my large Alice pack and my brand new CFP90 ruck sack. Loved the video buddy keep up the great work!

I just got this system, I've seen several at gun shows, but never took the time to lay them out, and check them, finally one of my local surplus stores had one, I got for $225.00 in excellent shape, just wondering if I would need to do some touch up waterproofing., great video

Damn, the link in your description has them just shy of $700 now. Don't think I will be buying this any time soon ☹

I've got one of these and the black bag is a little too narrow for me, as I've got wide shoulders! I'm thinking of going back to my Browning wide 0° bag, but the Browning is a bit heavy for backpacking.

Got mine brand new today, can't wait for the end of october to field test it in my overland expedition in the Utah's desert

great review Dave ! great sleep system i only have one problem i am 6 ft tall and 250lbs and wish it was a little bigger so i could move around a little , i look like a mummy LOL ! other than that and the weight i love it ! atb john

Great demo on the MSS. This will be overkilling construction for the average outdoor adventurer. But it can serve as a model for someone who wants to us less rugged construction and almost cut the weight of the total MSS in half. You can also add a Ninja.suite for a first layer. for summer skivvies and for winter poly pro or merino long sleeve Tee and long bottoms (in black to be a Ninja. Best sleeping system ever. I have been using the lightweight version that I put together myself. My first contact and use of the system goes back to the 1970 when Eddy Bauer sporting goods made a one pound down liner to go inside their down sleeping bags. Over time I added a one pound Bivy from REI to enclose what is now called the MSS. The MSS works best with the sleeping pad inside the Bivy. There are so many ways to create your own variations.

Great vid! My bag is in the mail & on its way. But a question when using it in the hammock: sleeping pad? Will it insulate enough? Or do i need a pad for some insulation space?

I recently bought the MSS sleep system haven't had a chance to try however I appreciate your review.

I’ve slept in these bags from Colorado to Afghanistan. They are not as warm as many civilian bags, but they will last longer. If I had to pack a bag to actually live in the wilderness, it would be this bag. Otherwise, buy a quality synthetic civilian bag.

These are an incredibly unecessary and stupid design. Give me a 58 Pattern sleeping bag and a water proof bivvy, jobs done. No stupid carrying bag, no stuffing bags inside bags, jst roll it out and climb inside.

You’re lucky , my MSS is about 6” to short ……but they are consistent all three of my systems are short . I’m 6’5” and 310 lbs . It’s still a great system ,I just wish I fit .

Might sound like a stupid question, but can you completely cover yourself with the bivy? Like, zip it up all the way and enclose your head? Wasn't sure if you'd have possible suffocation issues in these guys.

cool friend Modular 4 is the Best System A! my friend cool !! My Sys is - 65 -C extrenm 7 System !!!

I've slept in that system in -10. I undress and throw my clothes in it. Also add a small blanket. Sleep perfect

Thank you for the good demonstration. I have the bivy bag and now, thanks to you, I will buy the green sleeping bag.

Great system and video. As most winter gear systems it's heavy for backpacking though. The older I get, the more I like light weight. lol

Thanks for showing the assembly of the system, I believe it is awesome. I like your style doing videos 👍 Best regards from germany Torsten ☺

Well I have the patrol bag I just got the intermediate bag all I need now is the bivvy and the stuff sack and all I've ever seen every time I call up for the bivvy and stuff sack it shows me the entire system I don't want the entire system all I need is the bivvy and stuff sack just can't seem to find them

I have slept in my patrol sack and bivy down to 32* and its still warm for me - but I sleep in a stealth tent and strip down. I have used the winter bag and bivy in that weather in the same conditions and I end up sweating pretty good. I made the mistake of forgetting my patrol bag around 50* and it actually rained in the tent... I love my MSS

been looking at a sleep system for a while and this has let me make my final decision. thanks as always for a great review and video! blessins Dave!

Definitely need ro.fomd a set,planning a DIY hunting trip to Colorado this year

Do you know where one would find the other pieces? I have the intermediate black bag but in missing the others including the stuff to roll it up and put it away.

good video shame i had to look for conversion to celcius.. i think you wold have more viewers if you add some subtitles for celcius conversion.

Brand new US military MMSS is sold for $30 in Pakistan. It is worth it ❤️

Thank You so much, this video was very helpful!

@8:00 So that's what I've been doing wrong, I always went in head first! LOL

Got this bag from a buddy who was in the army over 10 years ago , still use it to this day . Great bag .

Any idea of the temp rating of just the black bag?

Hello Dave, very good sleep système and great review ! ;) I love your sleeping bag All-Season. Thanks for sharing my friend ;)

I've had mine in the winter and it kept me nice and warm. Mine was issued to me when I was in the Air Force. I really like it

I replaced that stuff sack with a Sea to Summit eVent compression dry sack. So much better and lighter.

Great video. I really like your videos. Very user-friendly.

the mss system is great, one thing I added is the dutch hooped bivy. for the insect screen AND! AND ! the hoop lets me breath ( don't like anything over my face a little claustrophobic I guess). Also a flannel sleeping bag liner adds about another 10 degrees or so of warmth). of course a hooped bivy doesn't work well in a hammock

Where can this item be purchased? That was not mentioned.

I use to sleep in bags on the mountains in the summer, but not as good and professional as this one. It looks heavy, but very complete and the modular concept is very clever!

Font know how I missed this video David. Really helpful as usual :-)

I have this but in winter I need a wool blanket and wool socks !

I like how you made the video in the snow. Badass!

I am 195cm tall, is it comfortable with that high? :) I looking for something with enough space for foots, because in all these fancy hipster bags I suffering and can't fell to sleep :) thanks ;)

Best sleeping bag ever, I bought one almost new, it's in perfect condition. Used it down to 30F. I wish it was slightly larger for us older guys. It obviously was designed for a fit soldier. I like your channel Dave, I'm a new subscriber. Going through some of your old material. Love that Woodcrafter axe too! So much I had to order it!

Now cover sleeping in this system as your primary shelter in summer, during high humidity and temperature. I'm anxious to know, since I'm looking into using this to add to a bug out system for multiple family members who have never camped.

I got 2 MSS Systems for 30 Dollars each

Unless your over 5'10 & 215#.....

been looking at these for a while now ...looks worth the investment, thanks Dave

I've been wanting to get one of these from a local surplus store but, without the functional knowledge of how to use one, I haven't pulled the trigger. Thank you for this very thorough and educational video. Now I can make my purchase with confidence.

Looks nice and comfy. Thanks for showing us how to set it up.

I love this guy's energy

Informative, well covered, as usual, Dave

Thanks Dave, I got my fix, can't wait for your next video! I have been wondering about that sleep system and now I think I'm ready to pull the trigger. See you next time buddy.

So there are moisture in the bivy despite a gore tex?

Wonderful system you have there. I am amazed at the great gear available to us. Thank you for sharing this with us.

Thanks for making the video

5yrs later. $400, no spanks.

You convinced me to buy this bivvy, sir.

I bought mine nearly brand new. The guy I bought mine from on eBay sold it to me for $127 but he said he looked every where for the compression bag and couldn't find it so he refunded me $10. He looked every where but inn the box. It was in the box that he shipped it in to me. I offered the $10 back. He refused but thanked me for letting him know. I've bought a zipper closure fleece liner and a liner that's like a bed sheet material (Ozark Trail) for my MMSS. I figure that would keep me even warmer inside my set up. And I bought a nylon facemask with just the eye holes. So I can keep the bag dry. And I have a camp pillow from Ozark Trail as well. I'm trying to talk my lady into buying an MMSS as well. I bought a waterproof dry bag to put mine in as well so it stays try. They say also if you sleep in say a dry set of thermals with wool socks and some gloves you can survive to -50*F. I do appreciate the length measurement. I hadn't thought about measuring my bag until tonight. But it's in my vehicle (35F outside) I didn't want to go out to get it just to measure bag. I'm 6'5, which is about 77 inches. I was looking for measurements of bag earlier and couldn't find any. Definitely the added bonus to your video for us. Thank you very much...

got one of my own😊best bag system ive ever owned

Excellent instructional! Thanks!

I bought same system however I think it have been stored wrong (compressed so that the fibres are wrecked) - IS way colder than my old haglofs - and other bags - HUGE DISSAPOINTMENT Tried the green outerbag in summer - would have been better of with a poncho liner :-O

I slept with this whole system and a sleeping mat in a -13f snowstorm, with a pitched tarp to keep the snow off. It was cold, but I was comfortable enough to sleep. This bag is huge and Heavy though, not ideal for backpacking

Enjoyed the review

Good system .But I prefer the Danish Special forces bags with the US Bivy or a stock Carinthia

Couldn’t find this for as cheap as y’all, ended up forking over about $300 for it but after using the digital camo version in the army it’s worth every penny

One thing not mentioned is that this system is heavy and takes up a ton of space in your backpack. It’s a bomb-proof system, don’t get me wrong, but it definitely has drawbacks compared to ultralight systems. Just food for thought.

Excellent sleep system. Thank Dave.

I am in one of these bags as I watch this! Two nights ago, our temperature plunged to below zero with daytime highs if only about 10. Stayed nice and toasty inside!

Bought a complete system for $150 at Allied Surplus in Phoenix. Inspected each component for wear. Each piece was in VERY good condition given that it was surplus. Snaps, zippers, draw cords all good to go! As the video says, this is an amazing system. It IS heavy with all components - not something you're taking on a thru-hike!

I love this system, but being 6'1", it drive me nuts b/c they made it too short. I cannot extend my legs unless my upper torso is outside of the bag. Finding the long version is very hard and expensive to obtain.

I've been using this system since 1988? Never let me down. It is a bit heavier to pack, but I still get a chuckle when I hear ultra-lite packers teeth chattering all night long. So, I guess its worth it.