Yes, the SBPDW has a QD sling mount on the end of the mounting bracket of the PDW. You can single point carry a firearm using this sling and that QD point or you can attach another QD point farther down the firearm to carry it in a more traditional two point set up.
Currently, I use a Sling attachment (for the m4/16 A frame gas block), a blue force v- sling, a RIS QD mount, & a magpul QD sling attachment. I find that the 6 o’clock position of the PDW brace, when slung, attempts to rotate the weapon system. To prevent this, I used the m4/16 gas block sling attachment and ran it through the top portion of the retention band (under the rubber). Once in place, I assembled the rest of the sling and looped the rear portion into the m4/16 gas block sling attachment. This may be confusing, so I can provide photos if needed. Send questions to @HiMyNameIsPeyton on Instagram. Hope this helps!