I see on your trademe add the reason your selling is to buy a cabinet complinat with E Category.
I guessing you have a rifle that the police have now deeped to not be A cat.
Do read the following .
Police campaign to restrict non-conventional stock designs
The police department is currently running an advertising campaign and threatening law abiding and responsible firearms licence holders with prosecution if they don’t comply with their demands.
National Shooters Association advises all licence holders who have possession of one or more of the effected firearms that they are not obliged to follow the instructions of the police department at this time.
The ‘Save our Butts’ legal challenge has obtained a judgment from the High Court at Palmerston North. In that judgment, Mackenzie J confirmed that the police department have no authority over the classification of firearms and he confirmed that the police department opinion of the legislation has no legal standing.
Police have publicly advised that the firearms which they presently find offensive are in a configuration that suits the New Zealand definition of sporting configuration. Under New Zealand law semi-automatics that are maintained at all times in a sporting configuration are not MSSA and do not require special endorsements. The police department have confirmed through Crown Law that they are not reclassifying these firearms.
National Shooters Association advises members and licence holders to not apply for special endorsements or obtain permits for their sporting configuration semi-automatic firearms until further notice.
Copied from
http://www.nsanz.org.nz/index.html