Quote:
Originally Posted by ThunderCactus
Well it doesnt matter what you do to the mechbox if it's a marui. The only way to prevent those from breaking above 330fps is with the ARS sorbo cyl head, or adding a sorbo tablet to your current cyl head.
Beyond that, you need a better metal, G&P makes mechboxes that are tough as nails, they've got some of the best low quality metal that airsoft guns can be made out of, that's why we all LOVE their M4's lol
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I'll second that. I had 2 TM mechbox shells snap off like that - one at 360 FPS, and one at a mere 340 FPS. It's quite normal as the original V2 design was intended to be fired at sub-300 fps velocities.
Reinforced mechboxes ftw. Not expensive and will save you a lot in the long run.