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  • Black Diamond Camalot C4s #0.4/Gray
  • Black Diamond Camalot C4s #0.5/Purple
  • Black Diamond Camalot C4s #0.75/Green
  • Black Diamond Camalot C4s #1.0/Red
  • Black Diamond Camalot C4s #2.0/Yellow
  • Black Diamond Camalot C4s #3.0/Blue
  • Black Diamond Camalot C4s #5.0/Purple
  • Black Diamond Camalot C4s #6.0/Green

Available colors

  • Black Diamond Camalot C4s #0.4/Gray
  • Black Diamond Camalot C4s #0.5/Purple
  • Black Diamond Camalot C4s #0.75/Green
  • Black Diamond Camalot C4s #1.0/Red
  • Black Diamond Camalot C4s #2.0/Yellow
  • Black Diamond Camalot C4s #3.0/Blue
  • Black Diamond Camalot C4s #5.0/Purple
  • Black Diamond Camalot C4s #6.0/Green

Black Diamond Camalot C4s

$64.95 - $124.95

Free 2-Day shipping on orders over $50*

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    • #0.4/Gray
    • #0.5/Purple
    • #0.75/Green
    • #1.0/Red
    • #2.0/Yellow
    • #3.0/Blue
    • #5.0/Purple
    • #6.0/Green
    5.0 5 120

    120 Reviews


    Just when you thought cams couldn't get better, Black Diamond brings out the C4 Camalots.

    The Black Diamond Camalot has been the go-to camming device for more than a decade. So how do you make it better? You give it an even bigger expansion range, you make it 30% lighter than before, and you add a thumb loop to make one-handed placements seriously easy. The new design is so good that two of the half sizes were eliminated because they're no longer needed. The Camalot C4s have won award after award and have become the standard for any serious climbers building up a rack. Whether you're freeing big walls in Yosemite or sending splitters in the Creek, this cam has everything you need.

    • Camalot is 30% lighter than the previous model
    • Double-stem design allows full strength when placed passively
    • Wide expansion range means you need to carry less pieces to cover the ranges
    • Thumb loop makes placement easier and provides an additional clip-in for aiding
    • Color-coded for quick identification
    • Click sizing chart link for range, strength, and weight info
    • Best in Gear award from Rock and Ice
    • Item #BLD0839

    Tech Specs

    see sizing chart
    see sizing chart
    Cam Lobes
    Cam Stops
    Cams Included
    Claimed Weight
    see sizing chart
    Recommended Use
    trad climbing
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Great Cams!

    • Familiarity:I've put it through the wringer

    These are wonderful as everyone knows. I pair them the Metolius Ultralight Master Cam as the Metolius and BD cams are slightly different in their sizes. So if you have a # 1 and # 2 in Black diamond and pair them with a Metolius cam you can have something in between a #1 and #2.

    Sets Par

    • Familiarity:I've put it through the wringer

    The cams by BD are next game. They put so much thought into the components and the weight. Working with cam's from Metolius or other competitors, you just dont feel the polished thought that BD has invested into their products. Truly the flagship rock climbing device BD makes is their cams.

    Gold Standard

    • Familiarity:I've put it through the wringer

    As Joel mentioned in his previous review, these cams are indeed the gold standard by which all other SLCD's (spring loaded camming devices) are judged by. If you are looking for something with a flexible stem for horizontal placements try the BD X4 or Totem Basic cam...everything else, C4 or bust.

    Phenomenal Cam!

    • Familiarity:I've put it through the wringer

    If you have talked to any trad climber about what cams they buy or have used almost all of them will tell you BD C4. That tells you something right there. If you look at most guide books of what cams to bring on certain climbs they will usually refer to a certain color in the BD cams. I have used these cams in a number of different trad climbs from Little cotton wood canyon, and Indian Creek in Utah to even Enchanted Rock in Texas. These are for sure the Industry standard in Cams. Placements are very easy, Extremely lite and have a wider range of motion as well. All around the best cam on the market

    Phenomenal Cam!


    • Familiarity:I've put it through the wringer

    Based on all of the other reviews, need I say more? Probably not, but in my experience I do prefer similarly-sized Metolius Mastercams over C4s in the .3 and .4 sizes (roughly mastercams #1 & #2). The springs have a stronger feeling and the stems are more flexible. C4s in .5 and up though, are bomber as can be.

    Great Cams

    • Familiarity:I've put it through the wringer

    There are a lot of cams on the market, and these have to be some of the best. They feel solid from the moment you pick them up, to the moment you're falling on to one of them. The durability is pretty good as well. There is a reason entire guidebooks are written in "Camalot".

    Tried and true

      It’s been said, Camelots are the standard. If you’re shopping for your first rack, you have enough to think about already. Rest easy knowing these are the right choice. I prefer the more durable and flexible stem of the X4s for smaller sizes, but I’d trust my life to some well placed C4s any day.


      • Familiarity:I've used it several times

      I've been impressed with both ease of placement as well as the security of those placements. I haven't fallen on a C4, but I've used them in belay anchors and other crucial points of protection. Recently I used a .75 to protect a dangerous pendulum when my partner was following on a route that traversed significantly. He hung on the rope a couple of times and given that the route traversed as much as it did, I was a little nervous about that cam walking itself to a bad position, but it stayed put and remained reliable. Certainly I've got some other stories related to trusting in these cams and it goes without saying that good placement and judgment of the leader is the most important factor with any cam, but I will say, the C4 seem to be the standard to measure other cams against. I haven't used extensively other brands of cams, but based on my impressions of the BD C4s I'm not in any hurry to go looking for an alternative right now.


        I use my cams like crazy and these babies never break down on me! I'm so glad my rack is made up of BD C4s because I know I can take whipper after whipper and not have to worry about my gear failing me. The weight has never bothered me and I'm a 115 lb girl. I'm still comfortable climbing with a full double rack up any crack- or even carrying 14 #2s up a climb :)


        • Familiarity:I've put it through the wringer

        These cams are absolutely great. The only thing that people really complain about with these are their weight. Which is not really a concern to me. They are only slightly heavier than the competitors.

        These have a great smooth action and fir the wall really well. They just work so well and that is why they are generally most peoples go to!

        Easy as 1, 2, 3!

        • Familiarity:I've used it several times

        I got the Fingers and Hands package of a 1, 2, and 3 and seems to compliment well the rest of my rack of Metolius cams in the smaller sizes. The expansion range of these is nice. Thanks Backcountry for offering this package. : )

        Trust em with me life...

        • Familiarity:I've put it through the wringer

        Best compliment I can give any piece of climbing equipment... I trust them with my life. They hold well on all types of rock, and so far I have never had one pop out on me. They get 4 stars because in the smallest sizes I prefer Aliens or small Friends, as they just seem to inspire a bit more confidence. Also, the trigger action on these (while fantastic) feels a bit cheaper than those of the Friends, DMMs, and even the Aliens. But that might just be a personal preference of mine. Attached photo shows me racked up with some C4s on a pretty fun 5.9.

        Trust em with me life...

        Gold Standard

        • Familiarity:I've put it through the wringer

        These cams are the standard for a reason - smooth action, burly double axle that gives more security and range, and has the right amount of stiffness/flex in the stem. I also prefer them to the u-shaped cams because they fit in weird spaces more easily

        When will you be getting more of the .3's?

        Where are the cams made?

        Will BC be getting more stock of the rest...

        Will BC be getting more stock of the rest of the sizes of c4's?

        Best Answer

        Hey Nikita,

        It looks like we've ordered some more of all the sizes, but they won't be arriving for a little while longer. Check back again at the end of January or beginning of February to see if we have them on the site!

        I was looking to get doubles for medium...

        I was looking to get doubles for medium size cams. Right now I have the C4 in #0.5 through #3. Should I just buy another set of C4s or should I double with Helium Friends? If I were to buy Heliums, I was thinking I would get sizes #1.5 through #3 as "in-between" sizes of the C4s. Thanks!

        Best Answer


        Depending on where you are climbing and your familiarity with different brands of cams (or your willingness to learn the different sizes), either the Black Diamond C4s or Wild Country Heliums will get the job done. Both are great camming devices that offer smooth trigger action, user friendly color-coded anodization, and anatomical thumb loop on a single stem design. The main difference between the two is the axle design, the Black Diamond C4 is a double axle which creates a wider expansion range (less cams, more range) compared to the Wild Country Helium which is a single axle design, resulting in a smaller expansion range. The Heliums may help to bridge a gap between sizes in the BD C4s, but lack the same wide expansion range that makes the C4 cams so popular.

        If I can only buy ONE Camalot to start out...

        If I can only buy ONE Camalot to start out with (since I'm just beginning my rack), which size gets used most often and would do me the most good until I can afford others? I'm a beginning climber . Thanks!

        Thats a pretty impossible question to answer. Really depends on where you're climbing and the size of the cracks you're climbing. Personally, I'd go with a #1 or #2...seem to always find a spot for both of those regardless of where I'm climbing.

        Correct me if I am wrong, I thought you...

        Correct me if I am wrong, I thought you were NOT supposed to clip the steel cable thumb loop! Metal on metal = bad?

        "The C4s include a thumb loop that makes them about a billion times easier to place one handed, and gives you a second point to clip in to."

        You can totally clip into the thumb loop. Metal on metal is fine as long as a rope is in the system. The nylon sling does little to absorb shock, because it's so short, so it pretty much makes no difference. That said, unless you're aid climbing, clipping to the loop will make your cam walk without fail.

        The wire loop can be used as a clip in point while aid climbing to gain an extra few inches, which was not an option with the previous style camalot. That said, it should not be used as a clip in point while free climbing. The BD camalots now have a special, wider nylon sling that utilizes a frost-knot like double up across the wire loop to better distribute the load onto the wire loop. See the article titled "QC Lab - Re-slinging camalots and C3's" on the Black Diamond website for a very scientific breakdown of how this works in real world climbing scenarios.

        Hey I want to buy set from 0.5 to 3 but I...

        Hey I want to buy set from 0.5 to 3 but I wanted to double up a couple of sizes. Which ones should I double the best for the first time? .75 to 2?

        Best Answer

        If your starting your own gear rack, and you have friends with plenty of gear to share, a single set of these is nice (0.5-3). It tells your friends you want to help, without making a bold statement. Eventually though, you will find yourself doubling up on all these main cam sizes, then the micro cams, then the monster cams. Cams are the meat and potatoes of any gear rack, and they hardly ever go to waste on most climbs. As with all tech gear, be sure you understand their proper use and placement. Climb safe.

        Thanks You for reply! Thats right, Im collecting my first rack, but i wanted to double some sizes 2- 3 sizes on the start since I have got money right now and in my country cams are VERY expensive so I wanted take this opportunity to buy them cheapper. Maybe green and purple You think? Or it doesn't really matter which ones I'll double right now.

        Bottom line Mike, every climb is different, and some will require more of the smaller cams while others need larger ones. As a climber and someone who has many climbing friends, we all own and use the 0.5-3 sizes pretty regularly, with the occasional micro-cam or larger cam thrown into the mix. It doesnt really matter what sizes you double up on, because sooner or later, each size will find its use. If you have the time, check out what your climbing friends have more of, or see what is recommended for the climbs/crags in your area. You can also check out the Omega Pacific Link Cam, which has the size range of three cams (NEATO!) Otherwise, mix and match and just have fun with awesome gear.

        James has great advice, and I'd second everything he said, except for the part about the Link Cams. I would steer you away from OP Link cams (as a beginner), because they are much more difficult to evaluate than C4's, plus they're heavy and expensive to boot.

        Here's a straight answer:
        If i wasn't trying to supplement a friend's rack, and had to choose three C4's to own in addition to this set, I would get either (.4, .75, 1) or (.4, 1, 2), assuming you also end up buying some Wallnuts

        Dear Mike,

        Actually, if I were you, I would buy a set of stoppers, and once you've climbed with them for a few months and are really confident with them, buy the #1 and #2 cams. And for your first week or two climbing with the stoppers, climb on top-rope and place them as you normally would, or you'll be trading for the first time and see all of your nuts falling out of your placements and freak out. At least that's what I am doing. Good luck!

        These are an excellent set of starter nuts, so here's the link for them:

        why are only 2 of the 4 lobs colored on...

        why are only 2 of the 4 lobs colored on these? are these cammers blemmed?

        Hi, does anyone know the drop test load...

        Hi, does anyone know the drop test load on the Black Diamond?

        i'm in the process of building my trad...

        i'm in the process of building my trad rack and am about to order a set of BD camalots (#0.5-3). after that my young rack will consist of the cam set, a set of BD nuts, set of BD hexes, and an additional #1 and 2x #2 camalots. my question is, if i were to buy one additional cam to supplement my set, which size should i get? i was thinking either #0.3 or #5, but am not sure which will really be more useful. if it helps, a majority of my climbing is done on sandstone in the Red River Gorge, KY.

        Best Answer

        Get the #.3. The largest i have is a #4 and have only used it 1 or 2 times. The #.3 will be more useful (where you are). I would also add you may be better off getting some smaller 3 cam units like C3s...maybe a #1 and #2. Plus the large hexes can be placed sideways and make pretty good #3-#4 camalot sizes. Good luck.

        The #5 looks neat but who really wants to climb a nasty offwidth, which is the only place you could use it. Plus the thing weighs like a 100 lbs. Buy either the .3, a .75, #1 or #2. Think fingers and fists. Those are the sizes you will be using most at this point in the game. good luck.

        Can anyone compare Camalots to wild country...

        Can anyone compare Camalots to wild country technical friends? I have a way to get the wild country cams at almost 30% off, where as I'll have to pay full price for camalots, and I'm trying to decide if its worth the extra cost to base a rack on camalots rather than friends.

        Best Answer

        I've used both, but prefer Wild Country Friends as they are lighter (a standard rack of 8 cams weighs 4 ounces lighter with Friends) and have always felt smoother than Camalots. Range differences are minor, Camalots are a few mm wider most sizes. Regarding the strength comment - Friends and Camalots are rated the same, although in smaller sizes, Friends are actually rated higher. I've had Friends on my rack for 25+ years and they simply work.

        compare this cam to the trango max cams.

        compare this cam to the trango max cams.

        Best Answer

        Trango makes good stuff - I have and use a set of the Flexcams. In all honest-to-goodness, even though your range for the Max Cam is a little bit better than the C4, with the C4s, you don't have one of the axles floating. This becomes really important if your cam walks back into a flaring-back crack - it still can act as passive protection. Maybe get your C4s for your workhorse cams, then keep a couple Max Cams as panic pieces or for blind placements where having a big range to get a piece in as quickly as possible is more important than anything else.

        Here's all the numbers for both of them: