How to Install a BCM MCMR QD Sling Mount

Quick Answer

You can install the BCM MCMR Quick Detachable Sling Mount on any M-LOK slot in minutes. No special tools are needed beyond a T15 Torx wrench.

Installation Steps

1. 1. Choose the M-LOK Slot: Select an M-LOK slot on your handguard that provides a balanced sling attachment point. Avoid placing the mount too far forward or too close to the receiver if it interferes with your grip. Common mistake: Choosing a slot that causes the sling to rub against the barrel or gas block.
2. 2. Align the Mount: Insert the BCM MCMR QD Sling Mount's T-nuts into the chosen M-LOK slot. Ensure the mount's orientation allows the QD socket to face the direction you want the sling to attach. Checkpoint: The mount should sit flush against the handguard surface before tightening.
3. 3. Tighten the Screws: Use a T15 Torx wrench to tighten the two screws evenly. Do not overtighten—stop when the mount is secure and does not rotate. Over-tightening can strip the threads or damage the handguard. Common mistake: Overtightening can strip the screws or damage the M-LOK slot. Use moderate torque.
4. 4. Test the QD Socket: Attach your sling's QD swivel to the mount. Ensure it locks in place with an audible click and does not release when pulled. If the fit is loose, check that the mount is fully seated and the screws are snug. Checkpoint: If the QD swivel does not click or feels loose, re-check the mount's alignment and tightness.

Product Fact

• BCM MCMR Quick Detachable Sling Mount: The BCM MCMR QD Sling Mount is made from steel for enhanced strength and longevity, unlike typical aluminum mounts. Steel construction means the mount can withstand heavy use and repeated sling pressure without deforming, ensuring your sling stays attached when you need it.