Check YouTube for Marksman Repeater, I have found several that show you how to take it apart and put it back together
See the attached Link: https://www.youtube.com/watch?v=H5qbEgnSZF0
See the attached Link: https://www.youtube.com/watch?v=H5qbEgnSZF0
go on the computer and scan the words 'marksman air pistol' ...............
Marksman made several models. Which one are you asking about.,
marksman
see the link below for the owners manual. The Marksman Repeater is a 4.5 .177 caliber pistol not a 5.5 .22 caliber pistol.
see the link below
The Marksman Repeater doesn't use a C02 Cartridge it a spring operated pistol
To get an answer you will have to state the condition of the pistol & is it still working?
See the link below
See the link below for reassembly.
which Model are you asking about