Quick Answer
For a standard AR-15 with a Mil-Spec or Commercial buffer tube, choose a clamp-on QD sling swivel mount. If your rifle has an M-LOK handguard, pick an M-LOK QD sling adapter for a low-profile, secure attachment.
Tube vs. Handguard: Where Do You Want the Sling?
The first decision is location. A clamp-on mount attaches to the buffer tube, placing the sling point near the rear of the receiver—good for two-point slings that need a rear anchor. An M-LOK mount attaches to the handguard, giving you a forward sling point that can improve balance and allow easier transitions.
Your choice depends on your rifle's configuration and how you carry it. A rear tube mount keeps the sling out of the way of accessories on the handguard. A handguard mount gives you more flexibility to adjust the sling point forward or backward along the rail.
Clamp-On vs. M-LOK: Key Trade-offs
Clamp-on mounts are simple and don't require existing rail slots. They are ideal for rifles with standard buffer tubes and no M-LOK handguard. The trade-off is that they add a small amount of bulk around the tube and may not be as low-profile as an M-LOK adapter.
M-LOK adapters are sleek and integrate directly into the handguard, but they require an M-LOK handguard with compatible slots. They also need the included T-nuts and screws for installation, which is a straightforward process but takes a few extra minutes.
Decision Rules for Choosing Your QD Mount
- If you have a standard AR-15 buffer tube: Choose a clamp-on QD swivel mount that fits Mil-Spec or Commercial tubes. It attaches without tools and works with most .223/5.56 lower receivers. Verify your tube's outer diameter is about 35mm to ensure a snug fit.
- If you have an M-LOK handguard: Choose an M-LOK QD sling adapter. It locks into the handguard slots and accepts most push-button QD swivels, allowing 360-degree rotation. Check that your handguard has M-LOK slots before ordering.
- If you need a two-point sling setup: Use a clamp-on mount at the rear and an M-LOK adapter at the front for a balanced two-point sling. This gives you a stable carry and quick transitions. Ensure both mounts use the same QD size to match your sling swivels.
Product Options
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QD-J Two Point Sling Swivel Mount Clamp-On Design Quick Detach/Release Tube Attachment (BLACK/RED/BLUE): Clamp-on design for Mil-Spec/Commercial AR15 tubes with an outer diameter of about 35mm and inner diameter of about 30mm. It fits most standard AR-15 buffer tubes, so you can add a rear sling point without modifying the rifle.
QD-J Two Point Sling Swivel Mount Clamp-On Design Quick Detach/Release Tube Attachment (BLACK/RED/BLUE)
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M-LOK QD Sling Mount Adapter Attachement for M-LOK Handguard, Includes 2 T-Nuts & 2 Screws: Compatible with M-LOK handguard slots and includes two T-nuts and two screws for mounting. It gives you a secure, low-profile QD attachment point on the handguard and works with most push-button QD swivels.
M-LOK QD Sling Mount Adapter Attachement for M-LOK Handguard, Includes 2 T-Nuts & 2 Screws
Which Mount Fits Your Rifle?
Best for
- Shooters with standard AR-15 buffer tubes who want a simple, tool-free rear sling point
- Users with M-LOK handguards who prefer a low-profile, adjustable forward sling attachment
Not for
- Rifles without a standard buffer tube (e.g., pistol-caliber carbines with non-standard tubes)
- Handguards without M-LOK slots—those need a different mounting system

