A 33-year-old man from Campsie, NSW, has been charged with unauthorised possession of a prohibited firearm, after a Belconnen mechanic allegedly found it concealed in the man’s BMW.

On Thursday, police were called out to a Belconnen auto-shop, where they found a 3D printed and modified firearm with a metal barrel.

Officers arrested the man before finding a .22 calibre hollow point round of ammunition, about $2500 cash, two mobile phones and several clip-seal bags believed to contain a trafficable amount of methamphetamine.

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