Military Modular Sleep System 4 Piece with Goretex Bivy Cover and Carry Sack | Weatherproof Bivy Protection | Gore-Tex Shell | Breathable Design

I have been interested in this product for a while now after seeing it on Youtube's Preparedmind 101 channel. I have been hesitant due to it's size, and total weight. I finally decided to buy it after a trip to our local sporting good store, and finding that most sleepings were outside of my price range. I found that in comparing commercial vs military surplus that for $85 for Very Good and $150 New; this is certainly the best value I could find. I had originally wanted to order this system in Very Good condition due to receiving a Very Good Condition item from Black Star Surplus which in my opinion was more LIKE NEW. I eventually ordered it in New Condition from the same seller and have to say that they will certainly be my go to military surplus store for a while. Items are exactly as described.Now onto the bags. Let's compare with some commercial brands.Down Bags are lighter and more compact, but very expensive. A 30-35 degree bag costs around $300.00-$600 from companies such as Sea to Summit and Western Mountaineering. Such bags do weigh in under 2 lbs. Companies such as Kelty and Northface do sell 20 & 30 degree down bags at the $200-300 price range, but these bags are usually around 3 lbs.A 30-35 degree Synthetic Bag such as a Coleman is around $40.00 extremely bulky and also heavy at around 4-5 lbsI found that the Marmot Trestles 30 which was available at my local store for $100.00 was the closest thing to what I was looking for, but at 3 lbs 3 oz it was still a fairly bulky and heavy sleeping bag. Let's compare to the bags included in the MMSS (Military Modular Sleep System) The Green Patrol Bag, rated for temperatures 30 F- 50 F actually weighs in a pound less at 2 lbs 3 oz; and when comparing to the Black intermediate bag in this system which is rates for -10 F - 30 F and weighs in at approx 3 lbs 13 oz. The 10 extra lbs is certainly worth it for the added warmth and the durability associated with a Genuine USGI product.Both these bags are priced at around $40.00 in NEW CONDITION.The Bivvy is made of a very durable Waterproof Goretex. Critics say that it is too heavy weighing in at 2 lbs 8 oz and is priced at around $60-$65. Most Commercial Bivvies weigh in at 1lb to 1.5 lbs, but often cost over $100.00. The Rei Minimalist at a mere 17 oz was something I was looking at, but reviews indicated that the bag was not entirely waterproof. I have noticed that some of the lighter materials tend to be more water resistant, than waterproof. I have heard great thing about this military bivvy, but this is actually the one part of the system I'm not sure about. I am the type of person that may never go camping without a tent and see little use for this at the moment. I have started to toy with the idea of starting to use a tarp instead of a tent when going hiking, camping and this would certainly come in handy for inclement weather. The problem is it defeats the purpose of switching to the tarp as the weight savings you gain by losing the weight of the tent is lost by carrying this 2.5 lb bivvy.The Compression sack is certainly of high quality, durable material. This is literally what ties and keeps this system together.A lot of stress is placed on this bag during compression. For those of you who plan on taking this whole system out in the woods very often, I'd recommend buy an extra compression sack.The Acu version of the MMSS actually includes a smaller sack, but at $300-$400 that hardly makes it justifiable to buy that system just for the additional stuff sack. I personally intentd to use this system year round and will be purchasing a commercial olive drab compression sack and will be taking the Green Patrol Bag with me for most of my camping trips. I have also been playing with the idea of purchasing the SOL Emergency Bivvy in Olive Drab to create a mini modular system. I highly recommend this system for anyone interested in prepping, or camping.Take note that for those of you who are planning to get into Ultralight/Lightweight Backpacking. The total weight of this is approx 9 lbs. The lightest piece of this system is the Green Patrol Bag at 2 lbs 3 oz, and it can be bought separately. if you are on a budget like myself and most people, the $30-$40 price point is enough to justify carrying that 1 extra pound. If you were planning on buying some generic budget sleeping bag with a rating of 30 - 50 degrees, then I suggest buying the Green Patrol Bag over any commercial product at the $30-$40 price point.

I WAS EXTREMELY HESITANT TO PURCHASE this product for two reasons:(i) it wasn't clear if I was buying something made by one company and sold by different distributors (since I could never find just one product name and there are multiple Amazon sites), and(ii) I was concerned about weight. My camping partner (= my wife) has a KELTY IGNITE DOWN BAG (16 Degree), that the manufacture claims is 2.7lbs. I didn't want to pay those prices.Given the price and what is claimed by previous reviews, I have some initial thoughts.****WHAT ARE YOU BUYING? WHO IS SELLING IT?****First, since there isn't one particular company selling this product, selecting the appropriate vendor does seem important (pace Amazon's suggestions). You are purchasing two sleeping bags, a bivvy, and a stuff sack made for the US Military. So, you have to purchase the system from Military Surplus stores, which have a reputation (deserved or otherwise) of claiming used items are new and take their time to deliver items.My experience was pleasant. I ordered a "NEW" bag from BLACK STAR on Sunday night, used standard shipping, and it arrived in CA by Friday evening. BLACK STAR puts a sticker on ever product indicating who inspected it. I appreciate that little touch. It had a strong, unquestionably military surplus smell, and everything looked new with one exception. The BLACK SLEEPING BAG had some loose threads on the inside of the bag and the outside on the very bottom of the bag. None appear to be the result of BLACK STAR or indicate the bag was used. But, the drawstring cord for the BLACK SLEEPING BAG's "hood" had a visible section that was frayed just about the point of breaking. Luckily, it was apart of the cord that I could tie off just a few inches before the built in tie off. It was easy to miss, but something someone might complain about. The STUFF BAG also has straps that are showing wear, but I don't think this is the result of BLACK STAR. It indicates less than perfect sewing. In short, I would recommend BLACK STAR! (fwiw, they included a coupon also.)Second, you are paying for three separate things (four if you count the STUFF BAG): two synthetic sleeping bags (one for mild and one for moderately cool-to-cold temps), and one GORTEX BIVVY. The BIVVY and the two bags may be combined via old-fashion blue-jean style snaps to create at least six different combos. Since I had to search for the information, let me describe these items in brief detail:- A Black STUFF BAG, which is black, very large, and has four vertical straps and three horizontal straps. A tight roll of the other bags leaves plenty of room. Too much, really. You probably don't need to roll anything. I will probably not use this STUFF BAG outside of home storage because of how many straps were dangling.- A WOODLAND CAMMO BIVVY GORTEX BAG. The BIVVY does not zip past the standard sleeping bag to either close or open it wider. There are jean-style-snaps to cover the zipper for extra protection. If you wanted to cover your face, there is a large velcro patch at the top of your head that would secure the BIVVY. Water could not get in unless the rain was horizontal and the wind forced the bag open; but I suspect getting wet would be the least of your worries in this situation; focus on surviving whatever weather event you're living through should take the majority of your attention. As far as water, its GORTEX! I poured half a bottle of water on it, and it rolled off. I then put the bag in the puddle, and nothing soaked through.- A BLACK SLEEPING BAG that is thick, and one that you might use as default. It attaches to the bottom and top of the BIVVY via jean-style-snaps. The zippers were heavy and a nylon lining prevents any accidental zipping of the bag. As others indicated, this is for cooler temps. If combing all three, it is designed to be the middle layer.- A GREEN SLEEPING BAG is not as dense as the BLACK, made for mild temps, and I think would make an excellent pillow. When combining, it attaches to the inside of the BLACK SLEEPING BAG via the same snaps on the ground side, but I didn't see that it attaches to the top of the black bag, which didn't bother me. If you connect the snaps on the ground, they are all connected. The GREEN BAG acts more like a lining without snaps up top. It had the same zippers and a nylon lining prevents any accidental zipping of the bag. Of course, you could skip the BLACK BACK and combine the GREEN with the BIVVY and you should have snaps on top and bottom.When combining all three bags are together, it is much like throwing in a liner to any sleeping bag. It took approximately five minutes at a relaxed pace and connecting almost all snaps before I jumped in. My test location proved too warm for all three (mid 60's and partly cloudy). But, seeing what each was like, I realized the GREEN BAG rolled is about as thick as my cheap fleece liner that I often use as a pillow. Having tested it at 60 something temps, I trust others saying the bag could handle sub-zero temps. All this is to say that whether you view this system as individual items or collectively, this is an exceptional price for what you are getting.You are also getting military surplus, which is an industry that exists for those of us who will continue to make a decision to purchase what our country's heros use. So, despite not having one company you purchase from, it is a quality product that I think will prove to live up to these reviews.***WHAT ABOUT WEIGHT ISSUES?*****My second concern I was also hesitant to purchase this system given weight issues. Several people have posted their findings, and I'll add mine since it was a concern. I weighted everything using a fairly accurate luggage scale that is +/- 0.3lbs according to my scrambling to get under 50lbs while in line at various airports. I did everything multiple times, and the weight differed. Still, here are my ranges:- STUFF BAG: 1.1 - 1.2lbs. Avg: 1.1lbs- GREEN SLEEPING BAG: 2.3 - 2.6lbs. Avg: 2.45lbs- BLACK SLEEPING BAG: 4.5 - 5.5lbs. Avg: 4.95lbs- WOODLAND BIVVY BAG: 2.2 - 3lbs. Avg: 2.3lbsTOTAL: 10.2 - 11.4lbs. Avg: 10.8lbs (SUM of other averages). I should add that 10.8lbs is one number I happened to take a picture of, so it isn't crazy.So, you SHOULD NOT expect the same weight from the expensive bags, which seem to be of two types. Either you purchase a high-tech, state-of-the-art, water-proof-every-feather type or you purchase a high-tech, state-of-the-art, that-is-really-poofy-synthetic type. While I grant that bags like KELTY, NEMO, NORTH FACE or MOUNTAIN HARDWARE offer these types with weights (allegedly) as low as 2lbs; they also come with a considerably more expensive price tag. But, this system does what more expensive bags don't: this system provides options. Consider the following...If there will be an issue of water, take the BIVVY, purchase a new stuff bag for next to nothing, and pack either the BLACK SLEEPING BAG or the GREEN SLEEPING BAG and you are carrying 7.25lbs or 4.75lbs, respectively. If you ditch the BIVVY, when there is no chance of water, you get more options depending on the outside temps. My wife's KELTY weights as much as the GREEN SLEEPING BAG, but in the summer she won't want one rated for 16 degrees; she appreciate the lighter bag this provides. So, for the price your paying, you're not only getting a system that is waterproof and functional at snot-freezing weather, but the system also allows for everything in between that and camping on the beach. Can this be said about anything NEMO or KELTY makes?But, if weight is still an issue, think of it this way: with the money you save on this system by adding maybe 2lbs extra to your pack, you can put the saved money you didn't spend on a name-brand bag into a switching your cloths from poly/nylon/cotton to wool/silk; moreover, you could spend your saved money on investing in lighter shoes, a better pack, or a super-light tent. Or bring the tent's cover without the tent, or nor tent at all since the GORTEX BIVVY will keep you dry.****WHO SHOULD BUY THIS?*****After my research, I think this is a great find and even better purchase. I'd also offer the unsolicited advice that this would also be a great system to have if you match any of the descriptions below:- you car camp, or the car is a short hike away,- you aren't concerned about weight,- you need a water proof bag at mild, cold, or sub-zero temps,- you are camping at a variety of temps on the same hike,- you get cold in the middle of the night, and instead of adding a new bag, you have to find that sweatshirt that smells like campfire.- you and your camping partner have different needs (e.g., if your partner has, say, a nice liner that adds several degrees, they could use the liner and the GREEN SLEEPING BAG while you use only the BLACK SLEEPING BAG at cooler temps. Or, if you or your camping partner have different opinions regarding what means to be hot at night.)- you forgot rain gear around the campfire, the BIVVY would be a quasi-snuggie- you've never slept under a starry sky without a tent because your super-high-tech sleeping bag doesn't perform well in the morning dawn's dew. No problem here!- you want an inexpensive, but quality bag.Given the accolades, there is something to this sleeping system.

Seller advertised used, 4 pc. surplus bivy bag Sleep System as in "very good" condition. It was better than advertised and arrived to my location from theirs (close by State) via United Parcel Service in less than 48 hours with standard shipping price. No need to have contacted seller to gauge customer support because none was needed. Very pleased with first time buy from this seller. Deal on product and shipment time/price was phenomenal!!If the product hadn't shown signs of superficial fading or aging on the care labels I would think it was new but for one exception... That was that on inspection the black, intermediate bag had 3 snaps that had come off of a green patrol bag attached to its own snaps. On first thought, I believed it was ripped off the green patrol bag that was in my specific order but, upon checking the patrol bag again, the snaps were off of some other patrol bag which is why the system the black, intermediate bag originally belonged to was probably turned in for surplus with the original green patrol bag they ripped loose from or something. I thought they might have been some kind of adapter snap that I forgot about but all snaps worked fine after removing the 3 superfluous loose snaps.Stitching, zippers, Velcro and cleanliness of the whole sleep system was outstanding for used surplus. Not a blemish, rip or snag in any of the 3 bags or compression sack after 2 inspections. I really wish to thank the soldier who yanked his original green bivy sack snap strip too hard or the person in the factory who put them on too loosely in order to help provide me with an outstanding surplus product and more to the point, a perfect black intermediate bag with 3 extra snaps for repair of the system in the future if need be!As a side note and cautionary tale, hopefully the other excellent pieces to the system weren't turned in for surplus due to body lice! I saw that one happen in my unit when in the military when I asked why we were being told to immediately turn in all wool blankets we were just issued two weeks before. Must have been some filthy place overseas you think? Nope, Arizona..... Thankfully, I got an honest answer so, I immediately burnt a reminder in my head to wash all used military issue gear and now apply it to surplus and Box store clothing that lets people try it out "in store". This means don't throw surplus on your bed or couch to inspect the order after arrival, do it outside and then straight to the wash and.. for God's sake don't try it on or crawl inside it before washing. Not saying the seller's facility has cooties, don't get me wrong, but that you never know why apparently excellent fabric sleeping gear, clothing and bedstuffs get removed from military inventory to get sold to surplus sellers. I doubt the bulk surplus buyers are even told why by the governments who sell it to them or if said governments budget in cheap fumigation before surplussing it out. Bottom line, don't blame any seller if you get "crotch crickets" from surplus fabrics. If they fumigated everything individually, just to be sure, it would cost them more to sell it to you than it costs you for laundry soap, hot water and forethought :)Hopefully, I didn't get this price and quality just for being a first time buyer but, since I did, it means I'm willing to find out by a second order if the need and occasion ever arises. (it probably will)Very, very pleased by product and seller. My apologies to the seller if I set, in this review for all to see, the standard of expected service that may make it hard to apply to every purchase people make from them but.... WOW, I am blown away by the quality of their surplus, price and delivery. I didn't even get issued used gear this good when actually in the military!

Two bags, one cold weather bag, one patrol bag, green one that is more fall spring, or cool summer night, and one waterproof bivy bag. This is not an ultra light kit. It has an industrial grade stuff sack. More like a medium size duffle with 9 nylon webbing straps. With three bags in it its about 12 inches by 22. All three bags are about as much feather bed as you can stand in cold weather. Just the bivy and the cold bag, 12x16, and with the patrol bag its a 12x12 medicine ball, the patrol bag and bivy with a light blanket and clothes on, is good to 35 degrees or so, its what I do in mild cold weather. The black bag is good to go for 30 alone. The Bivy is a good canoe go bag alone, with a space blanket, it retains a lot of body heat is water proof and add some gear for survival, it could help you out of a bad spot. Its a tent, in a way in a bag cover. Sleep out in it on a pad, rain is not a problem. The zippers are huge, one inside and one out, snaps to hold the bags in, zipper on bivy has a rain cover, top has a velcro closure, but you can still get some ventilation, GoreTex is water proof but breathes. While not light, for a bunk in a small boat or back of the truck, or driving in winter in bad places, this could keep you warm or alive. The patrol bag and bivy are light enough, the bags are not a mummy bag that you cannot turn over it, very wide at the top and middle, I hate being locked into something. It was big enough and long enough for guys with their boots on, its good enough for most people. The entire system is too heavy to pack long range, pick the temp, chose a bag or put all three in the truck for zero weather. Might fit in a hammock.

I got my Military Modular Sleep System last Christmas and have used it several times since. When I got it and opened it up Christmas morning the only negative I had was my wife had purchased, one of the fair ones or used ones and not a like new one like I asked her to. There were no rips or anything but the black bag did have something on the bottom some kind of stain like a powder had stuck to it or something ? I don't know but I washed it and most of it came off, but not all. But I really don't care about that stuff as long as it works. My 1st time using it was a record weekend in Ga we had 7 to 8 inches of snow in GA and that's unheard of. What a good time to test the bag right ! We were camping on the side of the Chatooga river in North East GA with all the snow it was a beautiful sight. The temps were down in the high teens to low 20's. I had only brought the black back and the bivy cover seeing as how with the -10 deg rating that would be enough. The 1st night I got in my hammock { I'm an experienced hammock camper and know how to sleep warm in the winter, place pad in bag with you } with out anything on but my socks and underwear and sock cap. That was a cold night. I did not freeze and was in no danger but I was not comfortable either. If I moved any from where I was it was cold. I've slept in colder with other bags { and my clothes on } and been fine.Well the 2nd night I slept with my fleece pants on with my fleece jacket, socks, and sock cap. It was a little warmer that night, around high 20's. And I slept fine, was good and warm. So the next time I took it out a month later I found myself on the same river with out the snow but the same temp's. This time knowing better I used both bags and the bivy cover. I am happy to report I was warm and toasty all night with minimal clothes. It maybe because my bag was used / older, I got cold. I don't get cold easy, I'm 6' 1" and 275 lbs and put off the heat. I can also fit inside this bag fine. All in all I would recommend this for the budget backpacker that needs 1 bag to do it all. It is heavy but that's why it's cheaper. The only other problem I had was I broke a plastic buckle on the compression bag when I tightened it too much.

First off, let me say that this sleeping bag system that I ordered from ammocanman.com is 100% authentic military issue, not a knock-off imitation. I served in the Army on Active Duty and am now a DoD Civilian employee. The DoD uses something called a National Stock Number (NSN) to catalog official issue equipment, along with the vendors who are authorized to do business with us. The NSN for this modular sleep system is 8465-01-445-6274. A quick search on FEDLOG shows the price at $263.05.I obtained mine in used/acceptable condition for less than $50!The only noted defect was that the fastener used to sinch together the stuff sack was defective, so I simply tied it in a knot. There was some sand inside the black patrol bag, but that was of no consequence to me.Performance: My son and I just got back from a camping trip to the Antietam Battlefield with the Boy Scouts. On the night we arrived, it was 37 degrees and pouring. Needless to say, we were soaked by the time we got our tent up and everything was wet. Despite sleeping in a very damp environment, I was extremely warm. The tent leaked throughout the night, but the gore tex bivy cover completely repelled the water -- so much to the point that at one point when I woke up during the night, there was standing water that had pooled down by my legs on top of the sleeping bag -- I simply brushed it off and went back to sleep. I was completely dry inside.On the second night, the temperature dropped down to 26 degrees and it was extremely windy. The bag itself was very damp due to the moisture in the air, but it did not affect it's ability to keep me warm. In the morning, there was frozen condensation on the inside of the tent, and also on the outside of the bivy cover. Again, the inside of the bag was completely dry, other than some residual moisture from where I started to sweat.As a matter of habit, I wear a wool hat because I find it difficult to sleep with my head completely buried in the bag, but at one point I did completely bury myself in the bag since my exposed face was very cold. Warmed up right away once I got completely inside the bag!The bag could be considered heavy compared to some commercial alternatives, but anything that you might purchase at REI or some other specialty store will cost literally hundreds more than what I paid for this item.An excellent product, and one that will last me for years!

I haven't camped in a million years but needed a bag for power loss (Northeast) and emergency or occasional use. Not only is this 4-in-1 incredibly sturdy and well-crafted, but the price from this particular seller beats anything I was able to find elsewhere online by at least $25 and often closer to $50, unless I was willing to go used. The bags and compression sack are all solid, heavily stitched, and what you would expect from a product designed for troop use - flexible, durable, and easily portable. Yes, it does weigh probably 1.5-2 pounds more than a comparable sleeping bag from consumer manufacturers, and if you are going to use it for a lot of trekking/camping take that into consideration. But if you are needing it for light use, emergency resources/prep you can't beat the quality and the price. I have two bags for the price of one if I need to break them out and share, consolidated storage, and emergency options such as waterproofing and serious thermal protection I'd have to pay a lot more for with a consumer bag.The bag(s) are large, as they need to be standardized to a larger and male adult frame -- another reason I'd consider not getting them if you are going to camp a lot and are of smaller height or frame. I'm 5'7 and will have scads of space to move. They look like they could easily hold a 6'2-6'3 frame. But again, I'm not heading to winter climes or camping in the cold barring a FUBAR situation, so the additional air space to heat is not an issue.The other reviews on this bag system seemed extremely accurate -- people who use this in cold climates in lieu of heat at night or a stove would be toasty in this. Highly recommend.

Even if this is the military's sleep system and is designed well, it is the best I have used in my life. I went on a backpacking trip with this, and it worked like a charm. Even if it weighs 10 pounds with all of the components, it is worth the weight. Out of my whole scout troop, I was the only one to stay warm. Where we set up camp, it got below freezing, maybe even in the single digits. On top of that, it was snowing. When I reentered the sleeping bags, the insulation heated up in about 20-30 seconds. The bivylwack cover, or Gore-Tex bivvy cover, was wind proof and stopped some pretty tough gusts of wind. If I really wanted to, I could have slept outside with no shelter, because the outer Gore-Tex shell is water proof. The two individual sleeping bags include a green patrol bag, and a black intermediate winter weather bag. The shell material of both are made of water-RESISTANT material. The difference between water resistant and water proof are that resistant repels moisture, which is for powdery snow and light rain. Water proof material is impervious to moisture. Also, the insulation of the sleeping bags won't migrate as fast as commercial insulation. The insulation will be fine if you leave it compressed for long periods of time, but the insulation will last much longer if you hang the bags up. The compression sack is superior to others, because of its ability to compress everything to 1 cubic foot, because of its countless compression straps.This has the cover of a tent, but the insulation of 2 commercial sleeping bags and a blanket. Another advantage is that all of the components snap together. The Heavy Duty zippers won't break, or catch on the sleeping bag, because of the rugged flap underneath the zipper to prevent snags. Probably the only downside to this sleep system is the size and weight. Since it is military grade, it is meant to fit in a medium/large alice rucksack, or an exterior MOLLE pouch. It was a little bit of a pain squeezing it into my 65 Liter backpack, but it's doable. This is perfect for any outdoor adventure that you need to stay warm, because of its customizability because of it comprising of two bags. It also can be used in any type of weather. If you've got the money, buy it.