Bikie had gun-making material: Vic police

A Mongols bikie gang sergeant-at-arms who allegedly shot himself by accident twice this year has been accused of trying to make guns and refused bail in case he reoffends.

Shane Middleton's girlfriend drove him to hospital on November 1 with an injury to his knee.

Police were called and searched the car, allegedly finding ecstasy pills and ammunition, the Melbourne Magistrates Court heard on Wednesday.

A raid at the Seabrook man's home the next day allegedly produced more drugs, gun parts and a mould, a Taser and an extendable baton, Detective Senior Constable Andrew Broad said.

He alleged Middleton was trying to make guns.

"In the last year, he shot himself twice by accident," Det Sen Con Broad told the court.

Middleton was charged with drugs and weapons offences.

He was refused bail on Wednesday after prosecutors alleged he posed an unacceptable risk of reoffending if released.

Middleton's lawyer, Sarah Pratt, questioned the strength of the case against the 25-year-old, labelling the car search an invalid "fishing expedition".

She also queried allegations that Middleton's wound was self-inflicted, because no bullet was in his leg.

Middleton's parents offered a $400,000 surety and he had been offered employment, the court heard.

But Magistrate Donna Bakos found Middleton had not shown exceptional circumstances that would warrant his release.

She agreed with police that the equipment allegedly found at Middleton's house could suggest someone trying to make guns.

"It's not just the volume of the drugs seized, which is a significant matter," Ms Bakos said.

"It's also the seriousness of all those other items."

Middleton is due to reappear in court in January.