BSA Lightening cocking and trigger problems

[Ashley]

Hi all, I’ve just joined the forum, not sure if this is the place to introduce myself but not much good with the net and fairly new to spring air rifles.

Ive been given BSA lighting that’s in a bit of a state. Trigger was awful when I tried zeroing with my own scope. I read somewhere it could be adjusted, so thought I’d take it out of the stock and try to service it at the same time, all the bolts were rusted in.

after separating the metalwork from the plastic stock the gun will no longer cock.

the arm that pushes the spring back popped out of the slot and now doesn’t seem to push the lug back enough for it engage the trigger.

Anyone have any ideas what I’ve done wrong please ??

 

[brian_null]

Welcome!

If you have adjusted the trigger screws there is a chance that you've over adjusted. This will cause the trigger to not be able to engage the piston when it gets pushed back.

Try adjusting the trigger screw back a bit and see if you can't get the piston to lock back again. Hope this helps.

 

[marflow]

https://www.dropbox.com/s/u5uvcobw8ercopj/BSA-Lightning.pdf



just for reference

 

[ranedouglas]

i have a .22 supersport magnum i bought cheaply - it had this problem. i found that a crosspin that goes thru that trigger housing was slipping out of one end and the gun would not cock and latch onto the piston , or if it did, i could not pull the trigger (which was scary to fix a cocked gun). i glued the pin in place with superglue gel, i also removed the wire part that prevents the trigger from being pulled while cocking (anti-bear trap) . it was causing the cocking arm (or cocking shoe) to pop out of the cocking slot. it took some patience, but now it is one of my favorites. it only shoots around 680 fps, but it is english quality from the 1980's and lots of fun to shoot. the trigger designs are different in later models and more difficult from what i recall about the .177 lightning xl i had. just stick with it, or find someone to help you - those guns are worth it - especially if it's made in birminham, uk..... chambers uk may have parts if you need them. my cocking arm was slightly bent where someone had re-straightened it, but i found it was the trigger not latching to the piston - not the cocking arm. do you have any idea when yours was made ? - paul.