Black Diamond C4 Camalot

Priced: $53.96 - $119.95 Rated:   - 5 stars out of 5 by 57 reviews.
Black Diamond C4 Camalot -

The Camalot by Black Diamond are the most dependable camming devices available with the widest range in each size. Their patented double-axle design and patent-pending cable stem have created a range of placement and strength unequaled by any other camming device. The highest standards of quality in testing and manufacturing combined with real world climbing experience make Black Diamond’s Camalots the most trusted cams available.

FEATURES of the Black Diamond C4 Camalot.


  • Single nylon stem design is less likely to walk after placement
  • Read all directions and safety material before use.**
  • Nylon stem is rigid for easy placement


  • Double-axle design continues to offer widest range possible in each size.
  • Click sizing chart link for range, strength, and weight info
  • Newly designed cams and stem contribute up to a 20% weight savings per size
  • Color-coded for easy identification and wide range of sizes


  • 0.94-1.62"
  • #4 - Range 66.0-114.7mm. Strength 14kN (3147 lbf). Weight 10.19oz (289g).
  • .75 - Range 23.9-41.2mm. Strength 14kN (3147 lbf). Weight 4.18oz (119g).
  • #1 Camalot
  • 10 kN
  • (3.42 oz)
  • Grey
  • 2.6-4.51"
  • Camalot is 30% lighter than the previous model
  • #.5 Camalot
  • 0.54-0.92"
  • Red
  • #.3 Camalot
  • (5.57 oz)
  • Green
  • (4.09 oz)
  • Blue
  • 8 kN
  • 66-114.7mm
  • (9.80 oz)
  • Significantly lighter weights, better flexibility, and smooth action make these new camming devices the best protection available
  • #2 Camalot
  • Individually tested to half their rated strength
  • .5 - Range 19.6-33.5mm. Strength 12kN (2698 lbf). Weight 3.49oz (99g).
  • #3 - Range 50.7-87.9mm. Strength 14kN (3147 lbf). Weight 7.09oz (201g).
  • 2.0-3.46"
  • 14 kN
  • Purple
  • Wide expansion range means you need to carry less pieces to cover the ranges
  • #2 - Range 37.2-64.9mm. Strength 14kN (3147 lbf). Weight 5.47oz (155g).
  • 19.6-33.5 mm
  • 1.19-2.05"
  • 1.46-2.55"
  • 0.61-1.05"
  • #.75 Camalot
  • New Camalots
  • .3 - Range 13.8-23.4mm. Strength 8kN (1798 lbf). Weight 2.65oz (75g).
  • Large, textured thumb catch and trigger bar give slipfree placement and allow for independent cam manipulation
  • Weighs 2.65oz to 1lb 4oz
  • 37.2-64.9 mm
  • Best in Gear award from Rock and Ice
  • Black Diamond's best selling and most trusted camming device
  • (7.09 oz)
  • Double-stem design allows full strength when placed passively
  • .4 - Range 15.5-26.7mm. Strength 10kN (2248 lbf). Weight 2.93oz (83g).
  • 13.8-23.4 mm
  • #6 - Range 114.1-195.0mm. Strength 14kN (3147 lbf). Weight 1lb 4oz (557g).
  • 15.5-26.7 mm
  • Thumb loop makes placement easier and provides an additional clip-in for aiding
  • (4.73 oz)
  • 50.7-87.9 mm
  • 0.77-1.32"
  • Oz, HoodWire and Neutrino Rackpacks available for easy racking (see Carabiner section)
  • #5 - Range 85.4-148.5mm. Strength 14kN (3147 lbf). Weight 13.4oz (380g).
  • #.4 Camalot
  • Yellow
  • (2.50 oz)
  • 12 kN
  • 23.9-41.2 mm
  • Super strong and easy to place in varying rock types
  • #1 - Range 30.2-52.1mm. Strength 14kN (3147 lbf). Weight 4.80oz (136g).
  • New patent-pending C-Loop stem uses a continuous cable, offering tremendous strength and flexibility
  • C-loop continuous cable stem design is strong & durable
  • 30.2-52.1 mm
  • (2.89 oz)

Widely considered to be THE cam, Black Diamond Camalots are strong and durable. The double-axle design allows a much wider range of placements than traditional single-axle cams. Like their predecessors, the original Camalots, the Camalot remains the most dependable camming devices available with the widest range in each size. The highest standards of quality in testing and manufacturing combined with real world climbing experience make Black Diamond’s Camalots; the most trusted and highest quality cams available.

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.

The gold standard for camming units, the Black Diamond C4 Camalot #4 double-axle design allows retraction of larger cam lobes, giving them a much larger expansion range than traditional single-axle units. Lightweight, easy-to-grab cable loop and trigger, and slings large enough to manipulate with gloves. Range: 2.60 to 4.51 inches (66.0-114.7mm)
Strength: 14kN
Weight: 9.80oz (278g).

Mountain Gear
Maximize on the versatility of your active pro with the reliable Black Diamond Camalot C4s that have a much larger expansion range because of their double-axle design that also provides additional loading strength.

Eastern Mountain Sports (EMS)
Black Diamond's new C4 cams offer the greatest opportunity for solid placements by utilizing a larger expansion range. A whole rack of C4s require one less piece, saving you a whole pound. (That's a lot.)
ProLite Gear
Increasing your chances of grabbing a cam that fits, the Camalots double-axle design allows retraction of larger cam lobes, giving these cams a much larger expansion range than single-axle units. Because loading forces are shared between both axles, this design has the strength to work as a full-strength cam stop, letting you use the cam as passive pro and adding security if the unit walks back into a wider part of a crack and umbrellas. This is the third generation of BD Camalots and they just keep getting better. The cable loop trigger is easy to grab, and the slings are large enough to manipulate with gloves.
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Average Price History: Price History
Review RatingNumber of Reviews
Country of Origin:China
Protection Color:Grey
Range:13.8-23.4 mm, 0.54-0.92 in (size 0.3)
Strength:Size 0.3 - 8 kN / 1798 lbf
Weight:1 lb 4 oz / 557 g
Weight (Grams):278 g
Compare specifications to related products.

Subcategories of Protection:

Black Diamond C4 Camalot Reviews:


Best cams you can buy .5 inch and larger

These are the best cams you can get for .5 inch to 6 inch. They have a good range, good holding power, and are well made. I found that under .5 inch, TCUs or C3s work better because cracks tend to be shallower in that range. 0.5 inch works well for small cracks (as well as #1 TCUs and C3s). I don't trust the holding power of cams below the #1 TCU and C3 size and prefer passive pro (stoppers, not hexes) in that size and smaller. 0.75 inch and 1 inch are great for handwidth cracks. 2 inch is for offwidth cracks. 3 inch and up are used for large cracks, gaps between boulders, and the base of a boulder when it's sitting on another boulder (The best placement for top roping is usually the backside of a boulder at it's base if it's sitting on another boulder.). I have seen small cracks expand and crack the rock in two when using small cams on weak or overused rock placements. The base of a large boulder will always be a stronger placement than a small crack which is why the larger cams are so great for top roping. These cams don't overretract like Metolius Power Cams so they clean better and are less likely to get stuck and left behind. The C4s also have the cams spread apart more so they don't walk out as easily. They don't have hinges like the more expensive Link cams so they won't break under torsional stresses (this is a flaw that company is currently working on to fix). If you think passive pro alone is good enough, wait until the first time you rappel from a stopper only anchor and see the front stopper start to pull up and out as the start of your rappel changes the direction of pull up. After that, you realize that you don't want to go without at least one cam in the front position of the anchor. I don't go climbing without taking my C4 cams with me anymore. They have earned a permanent place on my rack.
Josh at Mountain Gear on 08/08/2010

I'm going out there to say these are the best multi purpose cams ever. First off. Double axel cams make sense. More expansion range and the ability to use as a chock (which I have actually done, never thought I would).
they are burly, all the other reviews and the awards can attest to that. This cam takes abuse and asks for more. When they are ten years old and still going strong, BD is right there in Utah to Re-sling them for you for a modest price.
They have such a smooth action it really is nice when placing them, you pull that trigger and it just feels good. Unlike single axel cams that kinda jerk halfway through the trigger pull. The thumb loop makes its super nice to place with one hand. I have one dragon cam and it's hard to place because it does not have a thumb loop. That being said the thumb loop is great for aid climbing. Clip you aider right there and you are saving inches which quickly stack up to feet on a big wall. The extendable sling on dragon cams is nice but for as hard as it is to place them and for the inches you loose when aid climbing they aren't worth it.
So they are a bit heavy, but for all these features I think they are worth carrying on any climb any where.
I will say this,don't bother with the smaller sizes any more, just get X4's you'll be glad you did.

Matt Park at on 10/03/2013

Simply the Best

Black Diamond C4 Camalots are simply the best cams out there. Specifically sizes 0.75 - 3 are undisputed bests. People quibble over the larger sizes (especially the number 6) as to whether Black Diamond or Wild Country makes the best large cam. As far as the small sizes are concerned, I don't like them. The heads are too wide to fit into many small placements. I feel this is the major drawback to the double axle design on micro cams. I also still think the C3's need some work. The workhorse sizes (0.75-4) are simply great though. With the double axle design they have a greater expansion range than single axle cams. BD completely eliminated a cam in this revision by creating cams that overlap efficiently. This saves weight on the rack for sure.

In short, if I were to have the ultimate cam rack sized micro through large I would personally have a set of Aliens to cover the small range (get 'em pull tested), then BDs 0.75 - 6.
NeeDlzdos at Mountain Gear on 08/08/2007

The best cams I've ever used!

I have found that the C4 cams are easier to locate on my rack thanks to color coded slings and heads and available matching color coded biners (neutrino) that are available in the same colors as the C4 cams. Once located on my rack they are easier for me to place thanks to the oval wire stem. All this results in less time fumbling through gear and placing gear, and more time actually climbing. The end result, I get less pumped placing gear when I use my C4 cams. Since buying the C4s, I have hardley used anything else. I have also noticed that these cams are less prone "walking" out of crack once placed. Ill never buy anything else!
Mad Mac at Mountain Gear on 10/10/2010

You'll regret buying anything else

Once upon a time you had to choose between Friends (lighter, cheaper, but smaller range) and Camalots (heavier, more expensive, but larger range, so you didn't need as many).

But now they are the same price and weight, give or take, and the camalots simply work better. The range numbers don't tell the whole story, cams simply fit better into more cracks than friends. So for normal sizes there's no reason to buy anything else.

For very small sizes I don't know, C3 vs Aliens vs Zeroes... it's less clear.
M at Mountain Gear on 08/08/2006

Well, maybe not every day, but knowing that these will hold is just dandy! I always used to borrow my frineds' cams and finally committed to trad. These cams are super stable and have a great action to them. They are what all other cams are compared to. I've climbed on mine for around 4 months - maybe 25 pitches or so - and fallen on the 0.5, 1, and 2. Their colors kinda wear off, but I think that makes them look cool.

Koman at on 11/03/2013

The Gold Standard

I have been climbing through all the generations of the Camalot, and they have always been high quality gear you can trust. The newer versions are even more refined. If I'm on lead and sketched out, I reach for a Camalot, especially after seeing a buddy's LinkCam fail on a lead fall. When I find a used Camalot while climbing that's been left behind, after an inspection I clip it on and use it, and trust it.
John of Ark at Mountain Gear on 05/05/2012

Solid equipment...on sale!!

I love the BD cams. The only problem is that the wires are very thin. If BD made thicker wires, it would be perfect. I've got a whole rack of BD cams with rigged up wires. I'm sure if I didn't slam them into the rock, then tug on them at funky angles, the wires would last longer.

All commercial cams have lousy wires.

These cams are better than 10 year old Trangos.
rovieng at Mountain Gear on 08/08/2008

I bought a couple of the C4 cams and I absolutely love them. I also bought some DMM Dragon cams to see how they compare. I also love the Dragon's, but I have to say the thumb loop on the C4's is nice. Recently I've not been impressed with BD gear (they're outsourcing everything to China and there are quality control issues), but the C4 cams still seem to be the gold standard.

Erik Green at on 10/14/2013

Simply Awesome

I have done a lot of sport climbing and am just transitioning to trad. I have found that these cams place very intuitively and dont require a lot of beginner fumble. Triggers are butter smooth and devices have a great range relative to thier size. I offset the weight with trango superflys which makes all the pros way outshine the heavier cam. Love the color coding for those panick moments.
Peel at Mountain Gear on 02/02/2008