The ring on the back is to cock the bolt.

You can see where the hammer travels through the bolt and strikes the firing pin. This rifle fires from a closed bolt.

It goes to the Beretta model 1918/30 carbine in 9mm Glisenti. [...]]]> This is the bolt that you looked at yesterday.

The ring on the back is to cock the bolt.

You can see where the hammer travels through the bolt and strikes the firing pin. This rifle fires from a closed bolt.

It goes to the Beretta model 1918/30 carbine in 9mm Glisenti. It is a cartridge similar to the 9×19 but of much less powerful, http://en.wikipedia.org/wiki/9mm_Glisenti.

You can see the similarity to the Beretta model 38 smg bolt.

9mm Luger ammunition will fit and fire in this weapon but should not be used.

It was a well made carbine using a forged and machined receiver.

It was generally issued as a police carbine.