Algodoo

This took me ages to do.First of its type in phun. i got the idea after seeing a machine gun that could be 30cal or 50cal . so i made my sniper rifle 5.56mm and 7.62mm. The reason this is usefull is if your unit is carrying 5.56mm ammo then take a 5.56mm rifle and then you dont need 2 types of ammo. if theyre carrying 7.62 then carry a barrel of that calibre. So its easy to chage. simply pull the small black handle and remove the barrel, add the new one making sure the black box goes in the groove and it all lines up. then pull out the bolt pin slide the bolt back, then lift it up and out. drop the other in then slide it forwards. put the pin back in and you have a functioning 5.56mm rifle. to make it the other calibre do this again but the other way around.