Part identification
 

Can someone tell if this is a narrow or wide frame? Better yet will this fit either?

Looks like a narrow frame to me, gear drive. Not sure about 3 point swap though, someone else will have to chime in

Will only fit a NF. As pictured for the 1x6,1x7 series.

Thank you very much. That answers that, I found a 106 and a 128 for a really good deal. That is the only extra either of them have was wondering if it would fit my 86 to help with the purchasing decision.

This does look like the rear of a 1X6 series, narrow frame.