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  • Black Diamond - Positron Screwgate Carabiner -

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  • Black Diamond - Positron Screwgate Carabiner -

Black Diamond Positron Screwgate Carabiner

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

Can't wait? Consider one of the other Locking Carabiners we have in stock.

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110 Reviews


Versatile & easy to clip 'n' clean, the Positron is positively nifty.

With a keylock nose that prevents the Positron Screwgate from snagging on pro, this locking biner is ultra easy to clip and clean. Sharing all the unique features of the regular Positron with the addition of a screwgate, this biner has a deep basket for non-fumbly clips and a wide gate opening for piling in the runners. The Positron Screwgate is THE versatile locker to have—a great pro, anchor, jumar, haul bag or top-rope option.
  • Item #BLD0556

Tech Specs

Gate Shape
Gate Type
Nose Type
Major Axis Strength
25 kN
Minor Axis Strength
8 kN
Open Gate Strength
8 kN
Claimed Weight
56 g
Recommended Use
Manufacturer Warranty
1 year

Tech Specs

  • Reviews
  • Q & A

What do you think about this product?

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Cheaper, but worth it!

  • Familiarity: I've put it through the wringer

I love these carabiners, and all of my friends are always asking me to use them when we go climbing. They’re super easy to clip, and I am always happy when I get to set an anchor with them or use them to belay a partner. They’re a must-have for your first sport- or trad-rack.


  • Familiarity: I've put it through the wringer

I got this because it was cheap, but the quality is right up there with some of my more expensive carabiners. This is even one of my favorites. It's very light weight and functions very smoothly. The opening/closing mechanism works well and it seems very durable over all. Mostly I use them for rigging a top-rope anchor, but I kind of wish that I had a couple more of these guys (maybe in a non-locking version) because they're so versatile. It's the one I always carry on my rack.

Cheap cheap cheap! And good good good. What's not to love? f

They work!!!

  • Familiarity: I've put it through the wringer

I have several of these across my rack and they work awesome!

From anchor kits to belaying off of them they are great. They are light and they are a good size. They are on the smaller side which is what I like! They are good quality and I have been very happy with them.

Workhorse locker

  • Familiarity: I've put it through the wringer

Small, smooth, solid. They aren't great to belay from, and they're a bit heavier than some ultralight lockers like the Camp Photon Locker, but these are great to throw on an awkward alpine draw or to build anchors with.

Super Light

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

I currently own a hand full of Carabiners and these are the lightest I have ever had. At first when I grabbed them out of the box I thought they were fake due to being so light. Really goes to show how old my current equipment is. I will def order more of these.

BD Positron

Highly useful locker that I take when weight matters. Strong and light, the Positron is great for anchor building.

The small size makes it easy to carry four+ on my harness while free climbing without feeling too bulky and heavy.

While aid climbing, it seems like you can never bring up enough of these!

Stock up and get out!

BD Positron

excellent for anchoring

  • Familiarity: I've used it several times

i find the black diamond positron is ideal for anchoring. i have tried self belaying with it and it does not work well, because of its angle and awkward shape, the rope doesent run smoothly.

overall, its cheap, lightweight, and very durable!

Awesome Biner

  • Familiarity: I've put it through the wringer

These guys are the bees knees. They are small and lightweight, but very strong - I'm never worried about them being the failure point in any of my systems. They're cheap and flat out work. If you're after a smaller sized locking biner, look no further!

Great for clipping into bolt anchors

  • Familiarity: I've put it through the wringer

Even though big, fat locking carabiners are super reassuring when you're climbing, they're not so great when you can't fit them into the bolts at the top of a pitch. I've had this unassuming little locker on my rack for a couple years, and the best thing about it is that when you get to a bolt that has that tight angle, it always fits through the hole. I recommend carrying four of these, one for each bolt at an anchor and two for your master point. They weigh less and take up less rack space than those big fat reassuring lockers and they are just as strong. Interestingly, mine has taken a beating and seems to be impervious to scratches. Not that I care, but its kind of magical.

SUPER bargain-'biner!

  • Familiarity: I've used it several times

I have been a LONG time fan of Petzl's "Attache" series of lockers, namely the Attache 3-D, Attache, and their "William" carabiners.

That was until I was introduced to this bad-boy!

Not only is the Positron a fraction of the price of Petzl's lockers, but I'm a firm believer it feels better while clipping, belaying, and setting up anchors as well. Thus, this may be my new favorite!

It is REALLY small, which is perfect for simple anchors and belaying where you don't need the extra space or weight. That's probably my favorite feature is its small size.

It doesn't have the bright RED markings on it to remind a belayer to check if the lock is engaged either and I find this useful because then YOU ALWAYS have a tendency to make sure regardless of how it appears. This is a great feature IMO. It keeps climbers conscious of their actions rather than creating a lazy shortcut.

All in all a great locker. I'm sold on these little guys!

*Pic-The "Positron" from Black Diamond is pictured in the middle of both the "Attache 3-D" on the left, and the normal yellow "Attache" on the right.*

SUPER bargain-'biner!

anyone know the thickness of the diameter...

anyone know the thickness of the diameter of the main body of the carabiner? I need one that will hook through a 1/4" opening.