Either super glue it and it will be fine with the insert. Or just order the two back halves. Check your local shop too. i got lucky when i did the same thing a few weeks ago and found some color kits left at a local shop.
Why do people do this wanna-be hk thing? I mean hk people dont even play paintball, they just whine and start drama while wearing the ugliest stuff. Seriously you find light blue and pink to be attractive colors for your parents 1500 dollar investment (your gun/marker)? If you want to whine keep it off the field and save it for the internet; O wait! THATS EXACTLY WHAT YOU DO! Haha, if you don't play then don't whine.