Hate to beat a dead horse, but if you're still having problems with the rail system, I believe you have the same one that is currently being sold on huangs site (airsoftdepot.ca), which requires a new front plate in order to fit any TM clones. the front plate is the thing behind the front sight that the handguard fits into. huang has the front plates available for $5, so message him and ask (if you're still trying to fit it)
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