Needs a new seal
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I would suggest having a professional do it. Do a web search for "Airgun Repair' and locate someone to repair the gun for you.
see the link below for parts
Take it to a trained technician
a leak during suction will allow air into the gun, it could be a seal.
i cant afford a new seal for my daisy powerline 917/177cal(45mm) lead air gun pellet. How can i make one myself?.thanks. Contact Daisy "Contact us / Customer service" at www.daisy.com They may be able to help you.
I suggest you search the web for "Air gun repair" and locate someone near you to repair the rifle. See the link below.
By buying a new gun it is not cost efficient to repair this type of gun ----------------- New answer---------------------------------------------- actually it is cost effective to purchase a new seal depending on what you spent on the air rifle. Many manufactures even send you a new C02 seal if that is what is bad. First try the manufacturer's home page and contact Customer service. If it's an older air rifle then do a search for "air gun repair" on the web and select someone near you to have it repaired. Or see the link below.
change the window seal / gasket.
I suggest the you contact an air gun repair shop to have it fixed. Try looking up "Air gun repair" on the web and have them repair it for you.
Take it to an authorized repair center
Most likely "No," but here is the parts drawing for the pistol (see the link below) Crosman offers a service to locate repair shops that fix older Crosman air guns see the link below
To replace the breech seal in an RWS Diana air gun, first ensure the gun is unloaded and safely disassembled according to the manufacturer's instructions. Remove the old breech seal using a small flathead screwdriver or similar tool, taking care not to damage the breech area. Clean the seating surface thoroughly before placing the new seal in position. Finally, reassemble the gun and check for proper seal and function.
You mean Air rifle? See the link below
Most likely it has a blown seal.