Reddit mentions of Black Diamond Neutrino Carabiner - Gray

Black Diamond is commonly associated with outdoor sports, with needs such as for climbing and hiking. A lot of their offerings are robust and intended for actual hard use and rated appropriately for safety, hence the "heavy" description you're seeing.

They also have a lot lighter simpler offerings that are great for the common EDC'er and retain the climbing safety rating if you ever decide to take it climbing or etc.

One suggestion from Black Diamond: [Neutrino] (https://www.amazon.com/dp/B01HC7WWRM/ref=cm_sw_r_tw_dp_U_x_er5iDbCKTZS7T) (several colours available)

A cheaper alternative that's also popular: Metolius FS Mini II (several colours available)

Note, these 2 brands are commonly available online or in outdoor sporting goods kind of stores like an REI. These carabiner makers often also make locking variants if you prefer the extra security.

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Nite-Ize products are generally more for light use, and they're more about the features, design, and varieties. They're not rated for climbing but they give a load-bearing rating to almost all of their carabiners larger than the micro series.

They have a lot of variations to choose from including size, colour, material, locking or non-locking, and shape. They also have larger holders too, for example a carabiner that itself holds like 6 micro carabiners.

What you hear about failing is either a QC issue or the issue that with the double wire gate system sometimes you can have the gate accidentally open.

You can find these in a variety of stores or online. I've seen these in Home Depot and Walmart too.

My carabiner | Black Diamond | $9

My flashlight | Olight H1R | $67