Anyone know how to disassemble a Federal CP25?

[R U INJRD]

I have one I want to clean up, and something is rolling around inside it. I removed the obvious bolts/nuts (1 at the back and 2 that hold the bracket on), but it doesn't seem to want to come apart any further and I don't see anything else to take apart.

[tonytheskin]

if there are seams the unit might be pressed together or one inside the other. I might take some gentle prying to get them apart. maybe run some penetrating oil around any joints or seams.