Quickly reconfigurable between one-point and two-point operation for a wide variety of environments and missions, the MS4 QDM Sling enhances the proven MS4 Dual QD Sling by including Magpul QDMs. A heavy-duty replacement for typical push-button swivels, the QDM offers an innovative low-profile design and a freely rotating bale that channels sling webbing to prevent rollover. The MS4’s convertibility allows quick changes from your primary shoulder to your reaction shoulder, and the MS1 Slider means you’ll get rapid, one-handed changes to sling length for instantly customizable tension.