Sniper rifle mods?

[laurence]

A while ago i decided to buy a sniper to see how i liked it and bought a pretty rubbish swiss arms one. However, i moved on but atm its just sitting there and being used for plinking. Not a tm clone so no real upgrades for it, however, does anyone know any usefull mods i can use to get it a little bit better withought spending much money.
Thanks.