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  • Black Diamond - 3/4 Front
  • Black Diamond - 3/4 Front
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  • Black Diamond - Camalot C4 - #0.5/Purple
  • Black Diamond - Camalot C4 - #0.75/Green
  • Black Diamond - Camalot C4 - #2/Yellow
  • Black Diamond - Camalot C4 - #4/Gray
  • Black Diamond - Camalot C4 - #5/Purple
  • Black Diamond - Camalot C4 - #6/Green
  • Black Diamond - 3/4 Front -
  • Black Diamond - 3/4 Front -
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Current Color

  • Black Diamond - Camalot C4 - #0.5/Purple
  • Black Diamond - Camalot C4 - #0.75/Green
  • Black Diamond - Camalot C4 - #2/Yellow
  • Black Diamond - Camalot C4 - #4/Gray
  • Black Diamond - Camalot C4 - #5/Purple
  • Black Diamond - Camalot C4 - #6/Green

Black Diamond Camalot C4

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sale from $51.98 $124.95

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    • One Size

    Select a Color:

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    • #0.5/Purple
    • #0.75/Green
    • #2/Yellow
    • #4/Gray
    • #5/Purple
    • #6/Green

    171 Reviews


    Gold standard camming device.

    There are many reasons why most climbers rely on Black Diamond's Camalot C4 to save them when they fall. Just look around world-class climbing destinations like Yosemite and Indian Creek, and you're bound to see trad racks filled with Camalots. That's because this best-selling and most-trusted camming device boasts the original double axle design for an unparalleled performance. Double axles provide a larger placement range to give you more opportunities to place each cam in cracks ranging from offwidths to tight fingers. The double axle design also allows you to place the cam passively like a stopper. The Camalot also features a continuous cable stem for strength, an ergonomic thumb loop for easy handling, Black Diamond's patented sling for long-lasting durability, and a trigger with stops for easy cleaning.

    • Gold standard camming device for trad climbing
    • Double-axle design for extra-large expansion range
    • Double-axle design works as cam stops
    • Large thumb loop provides a clip-in point for aid climbers
    • Color-coded for quick identification
    • Includes five sizes from .05 to 3 (loose fingers to fists)
    • Click sizing chart link for range, strength, and weight info
    • Item #BLD0839

    Tech Specs

    Placement Range
    [0.3] 0.54 - 0.92 in, [0.4] 0.61 - 1.05 in, [0.5] 0.77 - 1.32 in, [0.75] 0.94 - 1.62 in, [1] 1.19 - 2.05 in, [2] 1.46 - 2.55 in, [3] 2 - 3.46 in, [4] 2.6 - 4.51 in, [5] 3.36 - 5.85 in, [6] 4.5 - 7.68 in
    [0.3] 8 kN, [0.4] 10 kN, [0.5] 12 kN, [0.75-6] 14 kN
    Cam Lobes
    Claimed Weight
    [0.3] 2.65 oz, [0.4] 2.93 oz, [0.5] 3.49 oz, [0.75] 4.18 oz, [1] 4.8 oz, [2] 5.47 oz, [3] 7.1 oz, [4] 10.2 oz, [5] 13.4 oz, [6] 1 lb 4 oz
    Recommended Use
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Try and get the recent once made in USA

    • Familiarity: I've used it several times

    the USA made are a better quality,

    Just got 11 and the Chinese ones look cheap compared to the USA made, if you can wing it, get some USA MADE.

    Some I got this week are made in 2014, others up to 2018..

    Luck of the draw with backcountry stock

    Try and get the recent once made in USA

    C4’s rock!

    • Familiarity: I've used it several times

    But you already knew that. It was time to double my rack when they released the 2019 set, and the 2018 set was on sale. Not quite as light as they would be in a perfect world, but there’s always the option of buying ultralights, and then not bitching.

    Gold Standard

    • Familiarity: I've put it through the wringer

    Even with the advent of the updated Camalots, these are still the gold standard in climbing protection. They have some of the widest range on the market and instill confidence when placed properly. You can't go wrong with this item, especially with all the sales you can find now with the new version coming out.

    I second that! Industry standard!

    • Familiarity: I've put it through the wringer

    I learned how to trad climb on BD Camalots. I love climbing with these cams in the desert and on granite. There is always a use for in between sizes, but I can always seem to find places where these cams work. BD is also always trying to make things better and lighter weight, but these are classic and I can't imagine I'll be needing to replace them any time soon. They'll be lasting me a while!

    This is a great option if you're looking to get into trad climbing. It will give you the experience to get familiar with sizing and opens a while new world of rock climbing vocabulary once you start "speaking in sizes." Naturally, when my rock climbing friends are over, my roommate can't understand a thing we're saying. We're just fighting about baggy 3s and toight 0.4s!

    0.5 - 4 make me happy

      I'm not sure how Black Diamond does it but the sizing of the C4's are incredibly intuitive. I have a single rack of metolius and a single C4 from 0.5 - 4 camalot. It seems that more often than not I get sizing correct on a placement in c4 faster than in Metolius given the larger camming range. That being said Metolius is my preference in the smallest sizes. Overall a great value .

      Classic, reliable, and BOMBER!

      • Familiarity: I've put it through the wringer

      No hype, no bull, exactly what you'd expect from BD products. Such peace of mind when you locate solid rock, just park the Caddie, clip n go, send, and enjoy the view!

      Wide cracks? Perfect!

      • Familiarity: I've put it through the wringer

      I've been using these cams for years and they continue to impress me. The ranges are much more forgiving than other brands that make cams this size, making these cams the go to for all sizes offwidth.

      Wide cracks? Perfect!

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


      We have a bunch of #0.3's and #0.4's on order. Would you like me to watch the inventory for you?

      Shoot me an email anytime you have questions!

      Jared D.

      Expert Gearhead



      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: http://www.blackdiamondequipment.com/en-us/shop/climb/protection/stopper-set-no-4-13

      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: