For that price I'm going to try them. Main reason I want MBUS is because they are alot lighter than the oem irons. Something as mechanically simple as a spring loaded plastic iron sight, I'm sure the Chinese had no problem making a high quality replica that works as good as the real thing.

If something is complex dont buy replicas. If it is simple a replica is probably going to be fine.

I usually won't buy replicas because I don't want to support a largely unethical business practice. But in this case I feel MAGPUL is doing some serious price gouging on a cheap and easy to manufacture plastic item. Alot of their stuff is reasonably priced but what they want for the MBUS is rediculous.

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Air Assault!