[JoeF]

Whoever did this is either an idiot or a psychopath, I am pleased your freind got off so lightly.
This was once a British Drill Purpose rifle, a standard weapon which along with thousands of others had been written off and 'deactivated' for training cadets or National service men. The 'deactivation consisted of drilling right through the barrel and furniture so that the hole can be clearly seen from above and below. The firing pin was cut short and a solid (no firing pin hole) bolt head screwed into place. The stock was clearly stamped DP as was the breech. Often the magazines were also removed to be replaced with balsa wood blocks painted black. Incidentaly, this kind of deactivation is not currently legal in the UK and they are still classed as Section 1 as the barrel is not plugged.
Your friends was one of these before someone replaced the furniture and added a working bolt (bet the numbers dont match). Utter, utter madness....!