LM037

I'm new to this forum and have searched around all day and i have to say, you guys have agreat amount of information here:)

This is my first gun and my first attempt at modding. The gun uses smaller size darts and the people at my job will only allow darts with suction, so i cant make my own. I need to be able to mod the gun to shoot the darts used by the the Lock n Load (the ones they use). Now, i have removed the internal spring from each tube, making the range much greater, but now i need to change the tubs. i know that the darts fit into thise Expo2 markers. Should i just replace the tubs on the gun with this or should i use another material, and what size diameter would fit these darts? Any help would be appreciated.

Thanks