colt 9mm conversion block

AR/M4 AR Pistols & Pistol Caliber ARs
1

I am looking for the old two piece design for a project. Does anyone know where some are for sale or have blueprints for it?

2

I have a set on my dedicacted 9mm lower pinned by M60joe. Just post a WTB on Sturm.

3

I bought some from Dennis Todd, but that was about 7-8 years ago. He seems to be a good source for rare Colt stuff. dtoddmg@aol.com