Well I ended up ordering a Midwest Industries Slim Line 10.5" MLok. I was able to find one fo $100 and free shipping, so I pulled the trigger. This one: https://www.midwestindustriesinc.com...mi-slh10.5.htm

I also ordered a Magpul SL-K stock for it. I figure if the smaller K version doesn't look right, I'll just hang on to it and get the regular SL stock.