Height from surface of handguard: 0.4"
The very first long-gun I had was an old Winchester 94 with no sling. I learned very fast that a rifle sling isn't only nice to have; it's a necessity. Regardless of what type of sling you have, you must have a sling mount that you can trust. You have a lot of money dangling from the end of your sling. Do you trust your sling mount?
The M-LOK rail is quickly taking over the AR world. There is a very good reason for this. The M-LOK rail is arguably the most secure mounting system there is. Therefore, you want an M-LOK sling mount equal to the task of securing your equipment. Enter the CMC Triggers AR-15 sling mount. CMC Triggers designed their M-LOK sling mount to accept any push-button QD swivel. If you want your weapon to be in your hands instead of on the ground, get a CMC sling mount as an insurance policy.
If you move with your weapon in a slung, carry position, this can be a problem. Any old M-LOK sling mount might not do the trick. The CMC Triggers AR-15 sling mount wears smooth, beveled edges. This feature presents your weapon with a much lower chance of snagging your gear. Maybe you don't operate with CQB web-gear or climb out of vehicles with your gun at the ready. If you've ever used low quality QD sling mounts, you know what I mean. Gear snags easily. Of course, some M-LOK rails come with QD swivel sockets. Chances are, that socket isn’t where you want it to be. You clamp a CMC Triggers QD AR-15 sling mount exactly where you want it. And, keep your gun where you need it.