Today I was offered a Colt Post Ban 16" 1/9 twist Heavy Barrel with a A2 stock and a removable A2 carry handle marked A2 on the carry handle, It's a Match Target Receiver, I think its marked Competition II HBAR, anyone know if this is a MT6731?? and is the barrel and chamber chrome lined?? The shop wants $795 plus tax, it's all factory Colt including the Bolt and carrier.
BTW, the condition is excellant.

Is it worth buying and do I have the Model correct?

Thanks for any info!

Model number sounds right.  Chamber is chrome lined, barrel most likely not.

Worth it? - Your call, price is reasonable, but I would keep looking for a 6520 / 6530 with the lightweight barrel and FH