Rose Tattoo member admits part in gun plot

Former Rose Tattoo drummer Paul DeMarco has admitted to being part of a plot to supply guns.

The 55-year-old ex-rocker entered a guilty plea in the Sydney District Court on Wednesday following guilty pleas from his gun-supplying associates, Jazz Dior and Elvis Mileski, on Monday.

Facts tendered in court reveal DeMarco was involved in multiple gun dealings, which were recorded by an undercover police officer, at his home in northwestern Sydney between October 2013 and March 2014.

The weapons included semi-automatic pistols, pump action shotguns, revolvers and machine guns as well as thousands of dollars worth of ammunition, documents say.

In his phone calls with the undercover officer, DeMarco used code words such as "motors" and "a variety of cars" to avoid speaking directly about the firearms.

DeMarco was arrested in April 2014 along with Dior, who is the sister of former bikie boss Sam Ibrahim, and her partner Mileski.

He remains in custody and a sentence hearing date is yet to be scheduled.