Damage Industries just introduced two new Grooved QD Sling Swivels. These are pretty cool. The grooves are on the QD button itself which just gives you a little bit of feedback and grip when trying to push the button. There are two options, Rounded Dome or Low Profile. I’ve been using some QD Sling Swivels from Damage Industries for a while now and haven’t had any issues with them at all. You may want to check these out if you’re looking for some new QD Sling Swivels. You can purchase some for yourself for just $14.95 at DamageUSA.com.