Bayonet
A bayonet is the name of a knife attached to the barrel of a rifle.
Bayonet
The knife attached to a rifle (Not Riffle) is called a "Bayonet".
knife, rifle
Receiver, stock, barrel, sights
Bolt
bolt
caliber and maker's name
If there is no maker's name on the rifle, it is likely a (former) military rifle. Without a full description of the rifle, and ALL markings on the rifle, there is no way that we can answer your question. Your best bet would be to take to rifle to a local gun dealer. Sorry-
From the German word "riffeln" meaning "groove" - the barrel of a rifle has internal grooves to give the bullet spin, which helps it fly straight and deviate less from where it is aimed.
A 7.7 Japanese rifle is worth $4,000 or more. If the original scope is still attached, you can basically name your price.
on top of the barrel should be written the makers name and possibly the model name. you will need that information to locate a forearm. Put a want to buy (WTB) ad on gunboards.com or gunbroker.com. Also try gunparts.com. you might be lucky..........