To obtain an owner's manual for a Marksman 1790, you can start by visiting the manufacturer's official website, where they may offer downloadable versions of their manuals. Alternatively, you can contact their customer service directly for assistance. Online forums and dedicated airgun communities may also have user-uploaded resources or tips on where to find the manual. Lastly, searching for the manual on websites that specialize in vintage or discontinued products might yield results.
Your best bet would be to contact Marksman directly. BTW Beeman airguns owns Marksman. See the link below
See the attached link: http://www.pyramydair.com/manual/marksman-1010
see the link below
See the attached link for the owners manual http://www.pyramydair.com/manual/marksman-1010
Crosman does not own Marksman. Crosman made a Repeatairmodel and Marksman made a Repeater model. See the link below for the Marksman Repeater owners manual.
See the link below for the owners manual
See the link below
go to the link below.
see the link below
There is none. Its spring loaded. See the link below for the owners manual.
The 1790 Biathlon Trainer is rated at 450 FPS
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.