Now available!
https://zactomodels.com/
First, a big thanks to Jim Rotramel for helping with references!
Two versions are available, the early AIM-120A/B versions and the newer clipped wing AIM-120C.
Both versions include separate nosecones and exhaust section to convert your missiles to CATM versions (Captive Air Training Missile).
The main body as supplied has the live version of the nosecone molded-in and just the exhaust cone as a separate part. The CATM versions do require cutting and replacing the front and rear sections.
The CATM type nosecone is occasionally seen on live missiles so check your references.
Note the left wing AIM-120C in this pic has the CATM type nose while the right AIM-120A/B is the standard live nose:
https://www.airfighters.com/photo/99576/M/USA-Air-Force/General-Dynamics-F-16C-Fighting-Falcon/89-2029/
I still don't know the explanation for that so if any of you know please chime in.