Get an owner's manual from the maker. It may not be user adjustable. It might take a gun smith or factory trained armorer to do it.
No. Also, Marlin does not sell the barrel for the 882 as a component part. The Model 17 barrel can be installed, but again finding the barrel is a problem. The existing barrel can be relined to .17HMR. sales@countrygunsmith.net
You will have to call Ruger to find out.
This would be best left to a qualified gunsmith to perform.
To adjust the trigger on a Marlin XS7 .308, first ensure the rifle is unloaded and safe. Remove the trigger guard to access the trigger assembly, then locate the adjustment screw, typically found at the front of the trigger. Turn the screw clockwise to increase pull weight or counterclockwise to decrease it, making small adjustments and testing the trigger pull until you achieve your desired weight. Always remember to reassemble the rifle and perform a function check after adjustments.
If the mount can be put on the firearm, yes.
Between 90-150 dollars,depending on overall condition and a good bore.
Type your answer here... how do I adjust the trigger on Remington 799
In 1957.
No, the Gyphon does not have an adjustable trigger
Try e-gunparts.com
That is the T-900 system, restricted by Marlin. sales@countrygunsmith.net