Found two slightly used Colt threaded small front pivot pins. Not perfect but not bad for older pivot pins. Fit small front only unless you have the bushing for fitting a large hole upper. $5 each MO or PP. ONE SOLD AND SHIPPED, ONE LEFT
I'm not sure, but it sounds like this is exactly what I need )along with a $3 bushing) to fit an SP1 upper (large hole/2 screw) to a milspec (small hole) lower. If so, I WANT ONE! Sending email. One sold!! Funds being sent.