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					Originally Posted by estcrh
					
				 
				Cerjak, is the barrel bolt (bisen) removable? 
Here is a link to Shigeo Sugawa's website, he has a lot of usefull information and pictures, you can purchase his book directly through his site by contacting him, the email address is on his site.
 http://www.japaneseweapons.net/hinaw...ui/english.htm 
			
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 Cerjak
Very   good website ,a lot of information on it !
About this barrel ‘s square  bolt it seems that it could be removable  but it is rusty and there is a kind of black protective paint I Guess  against the rust so It will be hard to remove it and I would be worry to do it.
But tell me more about those bolts are they always removable?
Regards