A'Leah Key , Get metal/brass rod slightly smaller than the bore diameter less then .177"/4.5mm, approx. rod size 5/32"or smaller should work fine. Make sure all other BB's are out of the reservoir and leave the door open, put a couple drops of oil in barrel, slide rod in the barrel from the muzzle until it hits the over sized BB and then tap it lightly with a hammer. The rods can be found at hardware/metal supply stores. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.