Mossberg 500 frame sizes?

[.455_Hunter]

Greetings,

How many different frame sizes are there for the Mossberg 500? There is obviously the 12 ga size, along with the special .410 size, but are there any others? I am guessing that the 20 ga guns are built on the 12 ga frame, but just wanted to make sure.

Thanks,

Hunter

 

[kingjoey]

IIRC there are three different sized receivers, the 500A, 500C, and 500E. The A is for the 12ga, the C for the 20ga, and the E is for the .410