Unfortunately this is a very inexpensive mass produced pistol, it cost less than $20 brand new. Marksman is owned by the Beeman air gun company. Finding parts is almost impossible because it is usually tossed out when broken. You can try contacting Beeman but the repairs may cost more than a new repeater.
http://www.marksman.com/
You probably can't. Marksman doesn't list all of the 45 plus BB guns that they have made over the years on their website. You most likely have an older one not listed. You need it go to a book store and find a "Bluebook" on airguns.
Marksman model 45 value: excellent condition (like brand new) = $125 good = $80 poor to fair (scratched rust dents = $30 to $40
There's a double action to the slide - see the link below for a manual:
What are you comparing the '45' to?????
The Hahn Super Repeater was marketed by Crosman, who also furnished air rifles to Sears. Possible. New Answer 3/30/2008 Yes Crosman made the same rifle (Hahn Super Repeater Model 166) for Sears under the JC Higgins name. Value Apx: 100%=$125 to 60%=$45
It would be worth between $45 - $60.
If it's only the '4' that's repeated, then the fraction is 2/45 . If the '.04' is repeated, then the fraction is 4/99 .
45
try: SARCOINC.COM
Juhan Parts is 45 years old (birthdate: August 27, 1966).
Well you need to find out how many parts are needed: 2+4+5 = 11 Therefore each part of the ratio is (45/11)x2 : (45/11)x4 : (45/11)x5 Do the calculator work yourself
You will need a gunsmith to find out.