A man accused of manufacturing a submachine gun has been granted bail by a Toowoomba magistrate.

A 52-year-old Toowoomba man was charged with a range of offences including making a submachine gun and possessing ammunition.

The 52-year-old is accused of making a submachine gun. Credit:Sean Gallup

Police searched his Harristown home on Thursday and found a shipping container with "a large range of equipment inside".

Police said they found gun making instructions and templates, grinders and welders to make weapons along with some methylamphetamine and smoking utensils.

They also allegedly found a Category R submachine gun, which is a magazine-fed, automatic carbine designed to fire pistol cartridges.

He was charged with the manufacture of a Category R weapon, possession of a Category R weapon, possessing drugs, possessing drug utensil, (not having) authority required to possess explosives (ammunition) and possess tainted property were seized.

He was set to appear in the Toowoomba Magistrates Court on Friday and was bailed to appear in that same court on March 7.