Ok /toy/, i come seeking advice, if you feel this should go to /m/ i will post there but /toy/ seems to know more about fixes. I love my MG Zaku II (F) 2.0 model, but the spring "Leg tubes" on him love to pop off on the bottom whenever they feel like it, I've already lost 2 of the rings on one so now each one has 8 of them on them. does anyone else have this problem and know a work around? Maybe i didn't install it right. (I put them on after the outer-armor, just like the manual said)

tl;dr: Leg tubes love to pop off on my zaku, is their a fix?

Pic related.