Hello
An interesting aspect is the threaded body, in the box-lock models with two, three, four and more barrel is impossible (except for modern methods) while tapping the stumps, and then resorted to a threaded sleeve which is He forced on an ad-hoc perforqacion.
Interesting also is a tool to screw-unscrew the barrel, open, which is in the last part.
Sorry for the translator.
Fernando K
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