Mainspring- Now Softer Cocking
Drop In Tune Kit for 124-127 sporters
Kit includes the spring and piston seal .You should use heavy tar for the spring and moly for the seal and piston. These are available under our lubricant section. Use sparingly.
When installing the spring-pick the best fitting end on the trigger side. Twist or turn spring on the guide using vel tar or like lubricant. Do not push spring on the guide. New springs are not as tight as the older ones however.
As stated the kit includes the piston seal.
Piston Seal;
Rarely you may find a tight tubed 124-127. Most often black market in origin.
Go to this link for seal fitting information,
http://www.airguns.citymax.com/catalog/item/251485/834669.htm