The revolutionary site is the place where President Kim Il Sung guided a test fire of the first submachine gun made by the workers.

The visitors went round the monument to field guidance, a submachine-gun performance test ground and submachine-gun firing range which are associated with the feats of the peerlessly great persons who chose the site for the first arsenal in the liberated country and paved an untrodden path for the nation's munitions industry.

They were briefed on the revolutionary relics of supreme leader Kim Jong Un at the site.