If you are referring to the Daisy 1000 (Hatsan ..made in Turkey and has a horrible trigger).
A much better option would be an RWS 94 in .22 (for hunting ) from Natchez
for $165 this is a very powerful gun , quite accurate and has a decent trigger.
It is capable of producing 18 ftlbs of energy ..plenty for hunting small game.
The Cummins gun B3 ..you can buy an "airgun cleaning kit "from Dauvens fishin hole for $5.49 it contains a new spring and piston seal breech seals , keeper
brass rod and brushes as well as a bottle of oil ..you can't go wrong. The spring that comes with it is a B4-2 spring and works on the B4-2, B7, B3 its a powerful one 25%more than an original one .
their phone # is 1 866 783 3792 Dauvens fishin Hole
or go to
http://store.dauvensfishinhole.com/hunting-shooting-air-guns-accessories-air-gun-inc.html
regards, Frank.