A. Fullness in Christ over all powers and authorities
B. Circumcised by the stripping away of sin
C. Buried and raised with Christ
C.' Dead in uncircumcision but raised and forgiven in Christ
B.' Christ stripped away the powers and authorities
A.' Christ triumphs over all powers and authorities
I'm not arguing that Paul had the intention of writing a chiastic structure. But it's a nice way of tracing the threads and arguments of the passage, don't you think?