M-LOK Sling Thingy
Run the 1-inch webbing sling you already chose straight off your M-LOK rail — no bulky, rattle-prone QD swivel required. A clean, lightweight attachment point that gets out of your way and stays put.
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You picked your sling for a reason. You should not have to bolt on a heavy, rattle-prone QD swivel just to run it. The M-LOK Sling Thingy gives you a clean, low-profile place to thread a 1-inch webbing sling directly onto your M-LOK rail — so your setup stays light, quiet, and exactly the way you want it.
A QD swivel adds weight, height, and a metal cup that clicks and rattles every time you move. If you are not swapping slings on the fly, you are hauling that hardware around for nothing. The Sling Thingy strips it back to what you actually need: a solid loop for your sling and a rock-steady mount for your rail.
How it works
- Mounts in one M-LOK slot. Includes the screw and T-nut — drop it in, snug it down, and it locks square to the rail.
- Threads a 1-inch webbing sling. The fixed 1" slot accepts most 1-inch flat nylon webbing slings. Loop it through, fold it back, and you are running your sling.
- Sits flush and quiet. No springs and no moving parts — nothing to rattle, snag, or wear out on you.
Built to take a beating
Made from a tough, impact-resistant nylon, the Sling Thingy shrugs off the knocks of range day and holds its shape in heat and cold. It is light enough to forget it is there, and strong enough to trust with the weight of your rifle.
| Spec Detail | |
| Mount | Standard M-LOK slot (screw & T-nut included) |
| Sling fit | 1-inch (25mm) flat nylon webbing slings |
| Material | Impact-resistant nylon |
| Attachment | Fixed (non-QD) — threads through a 1" slot |
| Weight | Featherweight (about 1.5 oz) |
| Color | Black |
Frequently Asked Questions
What is M-LOK, and will the Sling Thingy fit my rail?
What size sling does the Sling Thingy work with?
Is 3D-printed PA12 strong enough to trust on a rifle?
How is this different from a QD (quick-detach) swivel?
Does the Sling Thingy include mounting hardware?
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M-LOK Sling Thingy