Originally Posted by FAZR
Anyone know where I could get the sling mount, or at least one similar?
You looking for the one in this image?
As per the C8 Patrol Carbine Exploded View, it's part#: 09957C-1 PLATE ASSEMBLY W/DOUBLE SLING LOOP
If this is the one you're looking for, it looks like a proprietary Colt Canada sling plate that doesn't show up on it's own in any google searches. Looks like it comes included with the civilian sales SA15.7 & SA20 models as well. So if you know anyone who's picked one up, maybe find out if they're still using that plate. If so, this is the closest thing I have come up with (and they're not that close):
...And the real steel version: