Q: Is the Black Hole Mag Well compatible with 10-round Glock magazines?
A: Unfortunately Glock made the 10rd. Magazine ~ 0.04” shorted than a standard capacity magazine so it will not fit without modification to the magazine baseplate. ETS and Magpul 10rd magazines are reported to work fine.
Q: What base plates and magazine extensions are compatible with the Black Hole?
A: Centurion Arms, Tarin Tactical
Q: Are you going to make a Black Hole Mag Well for Gen 5 Glocks?
A: A Mag Well for the Gen 5 Glock platform is planned, but not in the immediate future.