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  • Big Agnes - Copper Spur UL4 Tent: 4-Person 3-Season - Terra Cotta/Silver
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  • Big Agnes - Copper Spur UL4 Tent: 4-Person 3-Season - Terra Cotta/Silver

Big Agnes Copper Spur UL4 Tent: 4-Person 3-Season

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    • Terra Cotta/Silver, One Size
      sale $422.47

    8 Reviews


    Get more tent space for the weight when backpacking with your crew.

    Popular, well-maintained campsites just don't scratch your itch for wilderness, so you pack up the four-person, three-season Big Agnes Copper Spur UL4 Tent (UL stands for ultralight), and set up camp well away from any roads, bathrooms, or RVs. Although it can't compete with a lighter-than-air one-person tent in the weight department, it weighs barely twice as much as the one-person Copper Spur, and sleeps four without any problem, making it an ideal choice for group or family backpacking trips where weight is still important. The Spur was designed with steep walls and a horizontal crosspiece for extra living space, and a Featherlite DAC hub-style pole system for easy assembly. It also has plenty of creature comforts (for a tent, anyway) like eight mesh pockets, individual media pockets with cord ports, and two large vestibules that comfortably hold packs, boots, and smelly gear, so your happy tent doesn't deteriorate into a pile of stink. 

    The Spur also has mesh walls designed to circulate air and let you sleep under the stars when the weather's good, and a ripstop nylon fly with zipper-covering storm flaps and taped seams, ensuring that no water ends up dripping onto your face or soaking your bag. Two doors eliminate the need to stomp over your tent partners' gear and faces, and reflective guylines and webbing take some of the fear out of walking around the campsite in the dark. You can even pitch the Spur using just the poles, fly, and footprint (sold separately) if you're looking for an even lighter setup.

    • Ultralight 2-pole hub design
    • Featherlight DAC aluminum poles
    • Two doors and vestibules
    • Steep wall design for extra headroom
    • Media pockets with cord port
    • 8 mesh pockets
    • Reflective guylines and corner webbing
    • Gear loft and footprint sold separately
    • Item #BAG001I

    Tech Specs

    [fly] nylon ripstop, silicone coating, PU coating (1200mm), [body] polyester mesh, nylon, [floor] nylon ripstop, silicon coating, PU coating (1200mm)
    Wall Type
    DAC NSL aluminum, DAC NFL aluminum
    Number of Poles
    Pole Attachment
    DAC H Clip, DAC Twist Clip
    Number of Doors
    Number of Vestibules
    Vestibule Space
    [each] 13.5 sq ft
    mesh walls
    fully taped
    Gear Loft
    no, sold separately
    Interior Height
    50 in
    Floor Dimensions
    96 x 86 in
    Floor Space
    57 sq ft
    Packed Size
    6.5 x 21.5 in
    Fast-pitch Option
    yes, footprint not included
    Fast-pitch Weight
    4 lb 4 oz
    Trail Weight
    5 lb 5 oz
    Packed Weight
    5 lb 12 oz
    Recommended Use
    ultralight backpacking, backpacking, camping
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?


    • Familiarity: I've used it several times

    I absolutely love this tent! I have two BIG dogs and bought the 4 person to accommodate my GF and the two monsters when we backpack. The tent weighs the same as my older 2 person, so im pretty stoked to have the extra room without the added weight. The material is ultralight so I also purchased the footprint which should help the tent hold up for much longer. I would recommend this tent to anyone who wants to keep their pack light but needs to extra space.


    Love this tent!

      I bought this tent a couple years ago when my husband and I had to upgrade our two man tent to accommodate two dogs. It's the same weight at our two man backpacking tent so it fits the bill as backcountry and car camping tent. Favorite things - easy to set up, stargazing, spacious interior, roomy vestibule, lightweight, handy interior storage pockets. When it's too cold for stargazing just use the rainfly and you'll stay nice and cozy. We have weathered many mountain storms in this tent and stayed perfectly dry. When the mesh on the door was damaged a few places from a rogue insect, I sent the tent back to company, had it repaired for $10 and it was shipped back within a couple weeks. I love this company and the tent!

      Bad Quality/Customer Service

      • Familiarity: I've used it several times

      I purchased this item April 2014. We used the text approximately 8 times over the next year. In August 2015, the two of the tent's clips for connecting the rain fly to the tent have broken during normal use. Around this time, a large rip in the mesh near the door zipper has appeared when zipping the tent shut. The rip is approximately 3 inches long.

      My husband and I are diligent about taking care of our gear and never misuse or manhandle the equipment. It is severely disappointing that this tent has started to come apart because overall the tent is a great design. I contacted Big Agnes about possible exchange or repair. I was told to send the tent back to Big Agnes on my own dime for evaluation and/or repair. In my initial contact with Big Agnes, I was told that if covered under warranty, the item would be repaired and sent back to me free of charge. However, after spending $22 to ship the item to Big Agnes, the only communication from Big Agnes was that they received the tent and a second email a few days later telling me they had fixed it and were charging me for repairs and return shipping. There was no discussion prior to the repair about whether or not it fell under warranty and if they wanted me to go ahead and have it fixed with me footing the entire bill.

      Does it sound reasonable that within 8 uses in 15 months of purchasing such an expensive and supposedly high-quality product that I would have to spend an additional 10% of the purchase price to repair it? No.

      My recommendation would be to find another company that makes better quality products that are made to withstand the use it was designed for. Big Agnes customer services is lacking to say the least. I am pretty disappointed because prior to this experience I had nothing but good things to say about the company.

      Buy your gear from another brand.

      Desert Camping

      • Familiarity: I've used it once or twice and have initial impressions

      Used this yesterday for a family desert camp at the edge of the Persian Gulf. It was a bit windy with the spring shamal wind blowing. We got the tent up ok but the provided pegs did not hold in the sand. I changes them for some others I had with my sun shade and we had no problems. The tent was warm and well ventilated as the temperature fell during the night. I main use will be our holiday next year as we fly to camp in the south korea and hike in the mountains.

      Awesome & Light

      • Familiarity: I've used it several times

      This tent has been on backpacking trips and rafting adventures and has been a great addition to our outdoor gear. Its light and easy to set up, and of course I love the quality of Big Agnes gear. This tent kept us dry in multiple back to back rainy days and held up well in moderate winds.

      Nothing Like It

      • Familiarity: I've used it several times

      You will never be sorry you purchased this tent. Took it on the JMT for a week with three other guys, two of us are on the large size. All four of us fit with no problem, though we slept the "short" way, not the long way the Big Agnes diagram pictures. In other words, the 86" width allows all but very tall people to lay that way, and it gives four guys an extra 10" of shoulder room. One of the guys still had his pack above his head. The ample vestibules sheltered the other packs and our boots with no problem.

      The weight-to-quality-and durability value of this tent cannot be beat. If you include the footprint (which you should), your total tent weight/person with four people is about 1.5 pounds/person. That's for near bomb-proof shelter.

      The way the door is attached to the floor is odd, but you get used to it. I am sure there is a good reason for it, since Big Agnes puts much thought into their design. Love having the two doors and two vestibules.

      What is the difference between Packaged Weight, Trail Weight and Fast Pitch Weight (Fast Fly Weight as Big Agnes calls it).

      Also what does the footprint weigh?

      Best Answer

      Here is how Big Agnes defines the different weights for their tents:

      Packed weight:

      This is the heaviest you can expect your tent to weigh, straight out of the box or from the store. This weight refers to all packaging, hang tags, as well as the stuff sacks, fly, body, stakes, poles, and guy lines.

      Trail weight:

      This is the lightest you can expect your tent to weigh, stripped of everything but the essentials. This number reflects the weight of just the fly (no guy lines), body, and poles.

      Fast-fly weight:

      This is the weight of your fly, footprint and poleset only.

      Copper Spur UL4 info:

      Packed Weight - 5lb 12 oz (92 oz) or 2610grams

      Trail Weight - 5lb 5 oz (85 oz) or 2410grams

      Fast Fly Weight - 4lb 4 oz (68oz) or1930grams

      Footprint Weight - 11 oz or 312grams

      Anytime you have a Big Agnes question, shoot me an email and I'll make sure to work with you 1-on-1!

      Jared D.

      Expert Gearhead